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<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>OpenACS Release Notes</title><link rel="stylesheet" type="text/css" href="openacs.css"><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot"><link rel="home" href="index.html" title="OpenACS Core Documentation"><link rel="up" href="general-documents.html" title="Chapter 1. High level information: What is OpenACS?"><link rel="previous" href="openacs-overview.html" title="Overview"><link rel="next" href="acs-admin.html" title="Part II. Administrator's Guide"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><a href="http://openacs.org"><img src="/doc/images/alex.jpg" style="border:0" alt="Alex logo"></a><table width="100%" summary="Navigation header" border="0"><tr><td width="20%" align="left"><a accesskey="p" href="openacs-overview.html">Prev</a> </td><th width="60%" align="center">Chapter 1. High level information: What is OpenACS?</th><td width="20%" align="right"> <a accesskey="n" href="acs-admin.html">Next</a></td></tr></table><hr></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="release-notes"></a>OpenACS Release Notes</h2></div></div></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-10-1"></a>Release 5.10.1</h3></div></div></div><p>
  The release of OpenACS 5.10.1 contains the 94 packages of the
  oacs-5-10 branch. These packages include the OpenACS core packages,
  the major application packages (e.g., most of the ones used on
  OpenACS.org), and DotLRN 2.10.1. The release is probably the most
  secure and with the most tested code since ever.
</p><p> Altogether, OpenACS 5.10.1 differs from OpenACS 5.10.0 by the
        following statistics
        </p><pre class="programlisting">
        3038 files changed, 1291141 insertions(+), 354533 deletions(-)</pre><p>

        These changes were contributed by 8 committers (Antonio Pisano,
  Gustaf Neumann,
  Günter Ernst,
  Héctor Romojaro,
  Michael Aram,
  Raúl Rodríguez,
  Sebastian Scheder, and
  Thomas Renner)
  and additional 8 patch/bugfix providers (Felix Mödritscher,
  Frank Bergmann,
  Franz Penz,
  Josue Cardona,
  Keith Paskett,
  Markus Moser,
  Marty Israelsen, and
  Monika Andergassen) - all sorted by the first names.
    </p><p>
        In terms of changes, the release contains the largest amount
        of changes of the releases in the last 10 years.  The packages
        with the most changes are <code class="literal">acs-tcl</code>,
        <code class="literal">acs-templating</code>, <code class="literal">xowiki</code>,
        <code class="literal">xowf</code>,
        <code class="literal">acs-automated-testing</code>,
        <code class="literal">acs-admin</code>, and
        <code class="literal">xotcl-core</code>.
    </p><p>Below is a summary of the most important changes, often
    together with the commit references in Git. The summary was made
    on subjective criteria.  For all details, consult the <a class="ulink" href="http://openacs.org/changelogs/ChangeLog-5.10.1" target="_top">raw
    ChangeLog</a>.
    </p><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="changes-in-the-acs-core-packages-between-openacs-5.10.0-and-5.10.1"></a>Changes in the acs-core packages between OpenACS 5.10.0 and
  5.10.1</h3></div></div></div><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="new-features"></a>New Features</h4></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
          <span class="strong"><strong>Security and Privacy Posture
          Overview</strong></span>: As expressed as a wish from OpenACS users
          at the last OpenACS conference, a <span class="quote">“<span class="quote">Security and Privacy
          Posture Overview</span>”</span> was added that offers a quick
          overview of the state of the system and eases access to the
          parameters scattered over different packages in the system.
          The page offers:
        </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">
              Quick overview
          </li><li class="listitem">
              Check of security and privacy relevant package parameters
          </li><li class="listitem">
              Permission and accessibility check of mounted packages
          </li><li class="listitem">
              Response header check
          </li><li class="listitem">
              External library check (CDN vs local usage, vulnerable or
              outdated libraries) The page is linked from the
              site-wide-admin page (<code class="literal">/acs-admin</code>).
          </li></ul></div><p>
        </p></li><li class="listitem"><p>
          <span class="strong"><strong>Stronger Password Hashes for
          OpenACS</strong></span> (commit fe2bdb547, 8eee6a932, 52d2c997e,
          62d969c85): Introduction of new password hash functions
          alongside the pre-existing <span class="quote">“<span class="quote">salted-sha1</span>”</span>. The new
          algorithms are named <span class="quote">“<span class="quote">scram-sha-256</span>”</span>,
          <span class="quote">“<span class="quote">scrypt-16384-8-1</span>”</span>,
          <span class="quote">“<span class="quote">argon2-argon2-12288-3-1</span>”</span>,
          <span class="quote">“<span class="quote">argon2-rfc9106-high-mem</span>”</span>, and
          <span class="quote">“<span class="quote">argon2-rfc9106-low-mem</span>”</span>. These algorithms can be
          specified via the kernel package parameter
          <span class="quote">“<span class="quote">PasswordHashAlgorithm</span>”</span>. The algorithms require a
          recent version of NaviServer and a recent version of OpenSSL,
          which serves as a crypto library. This feature enhances
          security against brute-force attacks on password hashes (when
          db is compromised). Preferences of the password hash
          algorithms can be set via kernel package parameter
          <span class="quote">“<span class="quote">PasswordHashAlgorithm</span>”</span>, the first available
          algorithm is taken from the preference list, hash re-coding
          happens automatically at the next login.
        </p></li><li class="listitem"><p>
          <span class="strong"><strong>Setting of CSP rules based on MIME
          types</strong></span> (commit 6bc253f1e, commit 94b8513ae). This is
          necessary to mitigate certain attacks on static SVG files
          uploaded to, e.g., the content repository. For example, set
          the following to the <code class="literal">ns/server/$server/acs</code>
          section of your NaviServer configuration file:
        </p></li></ul></div><pre class="programlisting">
        ns_param StaticCSP {
            image/svg+xml "script-src 'none'"
        }
</pre><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
          <span class="strong"><strong>Support for generic icon
          names</strong></span> Support for generic icon names, which can
          be mapped differently depending on the installed packages
          and themes.  The support provides a mapping from a set of
          generic names to the names provided by different libraries
          sich as Glyph Icons, Bootstrap Icons, Font-Awsome. The
          provided support can be inspected on the site-wide page of
          <code class="literal">acs-templating</code>.
        </p><p>The generic names can be used via the special tag <code class="computeroutput">&lt;adp:icon
          name="NAME" title=....&gt;</code> in .adp-files. By
          using this feature, one can use font-based icons (like
          e.g. glyphicons of Bootstrap5, bootstrap-icons, fa-icons,
          ...) instead of the old-style .gif and .png images. This
          makes the appearance more uniform, has better resizing
          behavior, and works more efficiently (fewer requests for
          embedded resources). Most of the occurrences of the
          old-style images in standard core and non-core packages in
          oacs-5-10 are already replaced. (commit c129c89ec,
          996740672, e9cae22dc, c7705c68b, a85ea7301, 58ad43055,
          737da5514, a05813ec7, 110b2f5d6, 7011c8fd9, 286fd9e58,
          927d9d5ef)
         
        </p></li><li class="listitem"><p>
          <span class="strong"><strong>Better Automated Site
          Configurability</strong></span>: Support for installing themes from
          <code class="literal">install.xml</code> (commit 2f9761160).
        </p></li><li class="listitem"><p>
          <span class="strong"><strong>Dynamic Cluster Nodes and Cluster
          Infrastructure</strong></span> (commit 5738761db, 7cbc3e63c,
          1a7a7656c, 3faceddc4, 5fba13c0f, 7cbc3e63c, 3faceddc4,
          1a7a7656c): Added support for dynamically adding and removal
          of nodes in an OpenACS cluster. In contrast to static cluster
          nodes, the IP addresses of dynamic cluster nodes do not have
          to be provided at startup time. The changes introduce new
          admin pages and further configuration options.
        </p></li><li class="listitem"><p>
          <span class="strong"><strong>Optional Caching Deactivation</strong></span>
          (commit 75c3f2b25): It is possible to deactivate caching via
          the <code class="literal">ns_cache</code> infrastructure when the
          NaviServer configuration variable
          <code class="literal">cachingmode</code> is set to
          <code class="literal">none</code>. The change modifies
          <code class="literal">per_thread_cache</code> to behave like a
          <code class="literal">per_connection_cache</code>. This option is useful
          for cluster configurations, when legacy components do not
          handle cache coherency (e.g. via
          <code class="literal">acs::clusterwide</code>)
        </p></li><li class="listitem"><p>
          <span class="strong"><strong>Support for Cloud Identity
          Providers</strong></span> (commit e506dee05, fd7af8d17, 06954d83b).
          Additional Identity providers can be added as secondary
          registries (e.g., MS Azure via oauth2), to support e.g. logins
          via the classical <code class="literal">register</code> page and via a
          cloud registry (requires package xooauth for full
          functionality)
        </p></li><li class="listitem"><p>
          <span class="strong"><strong>Client-side double click
          prevention</strong></span>: This change makes it possible to
          provide a double click prevention for HTML elements via the
          CSS class <span class="quote">“<span class="quote">prevent-double-click</span>”</span>. The double
          click prevention deactivates a button or an anchor element
          after clicking for a short time (per default for 1s) and
          ignores in this time window further clicks. The time window
          can be specified via the data element oacs-timeout. (commit
          5f2edeec2a9a831, 916d365aa11f2d)
        </p></li><li class="listitem"><p>
          <span class="strong"><strong>Cookie Namespaces</strong></span> (commit
          ce1573ed8): Important, when multiple OpenACS instances are
          served from the same domain name, but different cookies have
          to be used.
        </p></li></ul></div></div><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="reforms"></a>Reforms</h4></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><code class="literal">lc_time_tz_convert</code>: Enforce ISO format for
          dates and other changes (commit 9a5b5cd97).
      </li><li class="listitem"><code class="literal">template::element</code> validation reform to
          improve validation on fields (commit 87919f923).
      </li><li class="listitem">
          Provide timeouts for caching operations to improve liveliness
          also when certain calls are hanging (commit 22cd530d4).
      </li><li class="listitem">
          Form widget attributes reform consolidating logics for merging
          tag attributes (commit 3a7fc6a8e).
      </li><li class="listitem"><p>
          Streamlined resource_info handling by adding versioning and
          better management of external library dependencies. External
          libraries can be used from CDN or downloaded, the versions are
          checked for vulnerabilities, which are reported via posture
          overview and package-specific site-wide admin pages.
        </p></li></ul></div></div><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="configuration-changes"></a>Configuration Changes</h4></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
          Set the (default) theme package on the subsite upon
          installation (commit 0ff7101b3).
      </li><li class="listitem">
          Improved clusterwide operations with new configuration
          parameters (commit 5738761db).
      </li><li class="listitem">
          New configuration options <code class="literal">CSSToolkit</code> and
          <code class="literal">IconSet</code> for <code class="literal">acs-subsite</code>
          (commit fc56a275b).
      </li><li class="listitem">
          Support specification of allowed tags/attributes/protocols via
          global package parameters (commit 657cef99a,fc46466e3).
      </li><li class="listitem">
          Made <code class="literal">ad_html_security_check</code> configurable
          (commit bc63ee424).
      </li><li class="listitem">
          Support for memory units as default cache sizes (commit
          68c853abd).
      </li></ul></div></div><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="bug-fixes"></a>Bug Fixes</h4></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
          Fixed missing
          <code class="literal">update_content-lob.set_content</code> (commit
          a3effac23, 4ce8e9fae).
      </li><li class="listitem">
          Fixed incorrect HTTP status code on result page (commit
          636226cb2).
      </li><li class="listitem">
          Fixed signature of service contract implementation (commit
          b9f0c541c).
      </li><li class="listitem">
          Fixed implementation of <code class="literal">ad_acs_admin_node</code>
          (commit 34a823c51).
      </li><li class="listitem">
          Fixed reference in doc (commit e596b46f8).
      </li><li class="listitem">
          Fixed <code class="literal">ad_approval_system_inuse_p</code>
          implementation (commit bd8afdeeb).
      </li><li class="listitem">
          Fixed self-inflicted bug in form variable specification
          (commit 79e6df943).
      </li><li class="listitem">
          Fixed a bug in <code class="literal">db_multirow_group_last_row_p</code>
          (commit aafd1db58).
      </li><li class="listitem">
          Fixed issue with <code class="literal">ns_parseurl</code> in
          <code class="literal">util::split_location</code> (commit aee571ad1).
      </li><li class="listitem">
          Various fixes for Oracle 19c compatibility issues (numerous
          commits).
      </li><li class="listitem">
          Fixed broken function_args definition and other issues (commit
          83e45f9b5, d166927d2, etc.).
      </li><li class="listitem">
          Fixed a bug in <code class="literal">db_driverkey</code> when OpenACS
          connects to multiple databases, involving the removal of
          per-thread caching (commit 18e656b00).
      </li><li class="listitem">
          Fixed and generalized <code class="literal">version_dir</code> handling
          for download of external resources (commit 8e9a6a5c8).
      </li><li class="listitem">
          Fixed selector for click all list callback in core.js (commit
          00b9db614).
      </li><li class="listitem">
          Fixed a bug in <code class="literal">db_foreach</code> with
          <code class="literal">-column_set</code> flag (commit 95e8970d7).
      </li><li class="listitem">
          Handle null dates in core.js (commit 1dd928238).
      </li><li class="listitem">
          Fixed issues in SQL function calling to avoid incorrect
          function selection due to typecasting issues (commit
          bc33e9938).
      </li><li class="listitem">
          Corrected problems with session handling in cluster mode and
          fixed cache coherency issues in clustered environments (commit
          c0a1cf7b9).
      </li></ul></div></div><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="improvements"></a>Improvements</h4></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><span class="strong"><strong>Security Improvements</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">
              In addition to the new security features mentioned
              above, the new release was tested several times by
              different vulnerability scanners, which triggered a
              large number of changes as for example strengthening
              the input tests in page contracts, consequent use of
              bind variables and permission checks.
          </li><li class="listitem">
              New API <code class="literal">ad_mktmpdir</code> and
              <code class="literal">ad_opentmpfile</code> (commit a10b55d3d).
          </li><li class="listitem">
              Added support for elliptic curve certificates (ecdsa) when
              the lets-encrypt module from NaviServer is used (commit
              2c40f1d9d).
          </li><li class="listitem">
              Hardened page contracts, added many constraints to address
              potential SQI and XQL etc. attacks (many commits,
              e.g. 8eee6a932, d4846d106)
          </li><li class="listitem">
              Warn warning when <code class="literal">parametersecret</code> is
              not set (commit 0ec8f0183).
          </li><li class="listitem">
              Safe creation of temporary directories (commit d25ff6593).
          </li><li class="listitem">
              Upgraded internal use of JavaScript and HTML standards to
              improve security and performance (commit e68a73c92).
          </li></ul></div></li><li class="listitem"><span class="strong"><strong>Performance Improvements</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">
              New partial index for a common query in acs-tcl (commit
              aaaf86adb).
          </li><li class="listitem">
              Implemented <code class="literal">ad_html_security_check</code>
              based on <code class="literal">ns_parsehtml</code> (commit
              387f3de3e).
          </li><li class="listitem">
              Added support for NaviServer built-in
              <code class="literal">ns_trim -prefix</code> (commit 500099e0).
          </li><li class="listitem">
              Change in storing and displaying util user messages
              (commit bb0702bf3).
          </li></ul></div></li><li class="listitem"><span class="strong"><strong>Additional Filters for Page
          Contracts</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">
              Introduced <code class="literal">ad_page_contract</code> filter
              object type (commit 2f9d127a0).
          </li><li class="listitem">
              Introduced a new <code class="literal">clock</code> page contract
              filter (commit 5544faffc).
          </li><li class="listitem">
              Introduced new <code class="literal">tmpfile</code> page contract
              filter (commit 1a179e9bc).
          </li><li class="listitem">
              Allow more characters in argument specs (commit
              f952d9d5e).
          </li></ul></div></li><li class="listitem"><span class="strong"><strong>Code Refactoring</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">
              Added a new procedure <code class="literal">ad_log_deprecated</code>
              for unified logging of deprecated usages (commit
              0e03b3358).
          </li><li class="listitem">
              Improved configurability of LockfreeCache (commit
              9bc412576).
          </li><li class="listitem">
              Reform of site-nodes-procs for improved clarity and ease
              of maintenance, esp. Oracle (commit 3fe93032e).
          </li><li class="listitem">
              Update of SQL function calls via API, made it callable
              during initial bootstrap (commit ad97aa747).
          </li><li class="listitem">
              Modernization of idioms and cleanup of deprecated code
              (e.g., commit a5c537515, e68a73c92, 1d1ff8c4e).
          </li><li class="listitem">
              Improved documentation, localization updates, and typo
              fixes (e.g., commit 5c23325a3, f3590415f, 7a97e0ea0).
          </li><li class="listitem">
              Phased out outdated procedures and functions that were
              superseded by more efficient and secure implementations
              (e.g., commit 6272226b6).
          </li><li class="listitem">
              Deprecated old APIs that no longer align with modern
              security practices or performance standards (commit
              cd0af7373).
          </li><li class="listitem">
              Removed legacy support for certain outdated browser
              features and replaced them with modern alternatives
              (commit a1a7c22a7).
          </li><li class="listitem">
              Further reduced divergence between Oracle and Postgres
              SQL. Target version of Oracle could be 12.*, as Extended
              support ends in 2022 (see
<a class="ulink" href="https://www.oracle.com/us/support/library/lifetime-support-technology-069183.pdf" target="_top">https://www.oracle.com/us/support/library/lifetime-support-technology-069183.pdf</a>).
              This change implies:
            <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem">
                  change <span class="quote">“<span class="quote">limit ... rownum ...</span>”</span> to standard
                  <span class="quote">“<span class="quote">fetch first ...</span>”</span></li><li class="listitem">
                  use Postgres schemas where available for stored
                  procedures so that they can be invoked with the same
                  Oracle idiom
              </li></ul></div></li></ul></div></li><li class="listitem"><span class="strong"><strong>Miscellaneous</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">
              Message keys for content repository (commit 2f89a971a).
          </li><li class="listitem">
              Make <code class="literal">util::join_location</code> usable for UDP
              and SMTP (commit 01b5c0d61).
          </li><li class="listitem">
              Zero-dependency implementations of Modal and Tooltip using
              CSS and JavaScript (commit db0f52664, 02bfffbb2).
          </li><li class="listitem">
              Deprecation of specific functions and APIs in favor of
              modern replacements (e.g., commit 4493f07b9, 6db041083,
              94c505b01).
          </li><li class="listitem">
              Extended API: Introduced new API functions like
              <code class="literal">ad_unless_script_abort</code>,
              <code class="literal">aa_silence_log_entries</code>, and
              <code class="literal">util::json2dict</code> to enhance error
              handling and logging cleanliness (commit aeb027aeb,
              f455d60c6, e9298cf02).
          </li><li class="listitem">
              Expanded timezone data and improved internationalization
              features, including better locale management and updated
              localization data (commit 828ab0bd4, 47d478bcf).
          </li><li class="listitem">
              Added Support for listing registered URNs (per package on
              the site-wide admin page of a package, full set on the adm
              page of acs-templating)
          </li><li class="listitem">
              Added support for relative redirects (commit 867d9441e).
          </li></ul></div></li><li class="listitem"><span class="strong"><strong>Regression Test</strong></span>:
        <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">
              The regression test was substantially extended and in part
              overworked
          </li><li class="listitem">
              The test includes now checks for resource leaks (tDOM
              documents and nodes, temporary objects, etc.) and leaves less
              garbage in the /tmp directory
          </li><li class="listitem">
              For the major packages (core and application packages),
              the tests run without reporting errors.
          </li><li class="listitem">
              For the tests of the majro packages, the system.log is now free of
              error messages (e.g., when handling cases in the test that
              are supposed to fail)
          </li></ul></div></li></ul></div></div><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="version-requirements"></a>Version requirements</h4></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
          Require NaviServer (i.e. drop AOLserver support). Rationale:
          AOLserver cannot be compiled with the required modules with
          recent Tcl versions. Trying to backport NaviServer
          compatibility functions seems to be an overkill for the
          OpenACS project.
      </li><li class="listitem">
          Bootstrap 3 reached EOL in 2019, Bootstrap 4 had EOL 2022, so
          we should migrate to Bootstrap 5 (details:
          <a class="ulink" href="https://github.com/twbs/release" target="_top">https://github.com/twbs/release</a>)
      </li><li class="listitem">
          Require Tcl 8.6.2, XOTcl 2.1, PostgreSQL 12 (PostgreSQL 11
          EOL: November 23), tdom 0.9
      </li><li class="listitem">
          Support for fresh installations on Oracle 19c (for details,
          see:
<a class="ulink" href="https://openacs.org/xowiki/oacs-5-10-on-oracle-19c" target="_top">oacs-5-10-on-oracle-19c</a>)
      </li></ul></div></div></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="application-packages"></a>Changes in OpenACS Application Packages</h3></div></div></div><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="new-packages"></a>New Packages in OpenACS 5.10.1</h4></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
          bootstrap-icons
      </li><li class="listitem">
          caldav
      </li><li class="listitem">
          captcha
      </li><li class="listitem">
          fa-icons
      </li><li class="listitem">
          highcharts
      </li><li class="listitem">
          openacs-bootstrap5-theme
      </li><li class="listitem"><p>
          For a description of all packages, see:
          <a class="ulink" href="https://openacs.org/repository/5-10/" target="_top">https://openacs.org/repository/5-10/</a>
          
        </p></li></ul></div></div><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="changes-in-package-attachments"></a>Changes in package "attachments"</h4></div></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="improvements-1"></a>Improvements</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><span class="strong"><strong>Security Improvements</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">
                Strengthen page contracts (3b9068ad)
            </li></ul></div></li><li class="listitem"><span class="strong"><strong>Code Refactoring</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">
                Replace handcrafted HTML icons with new adp:icon adp tag
                (f45e6406)
            </li><li class="listitem">
                Replace deprecated
                <code class="literal">util_commify_number,</code> with
                <code class="literal">lc_numeric</code> (518e1b34)
            </li></ul></div></li><li class="listitem"><span class="strong"><strong>Miscellaneous</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">
                Document public API (fd5b5e1c)
            </li><li class="listitem">
                Improve test suite and cover 100% of public api
                (3446f91c, c933a64e)
            </li></ul></div></li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="deprecations"></a>Deprecations</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><code class="literal">attachments::root_folder_map_p</code> -&gt;
            duplicates functionalities of
            <code class="literal">attachments::root_folder_p</code> (cc3177d1)
        </li></ul></div></div></div><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="changes-in-package-calendar"></a>Changes in package "calendar"</h4></div></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="new-features-1"></a>New Features</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><span class="strong"><strong>Inclusion of multiple
            calendars</strong></span> (77f4db84): name calendar forms in a
            way that multiple calendars can be embedded on the same page
            (relevant in the context of .LRN portlets)
        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="bug-fixes-1"></a>Bug Fixes</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
            Javascript fixes (b1d49bc1)
        </li><li class="listitem">
            Fix retrieval of a calendar item when a connection context
            is not available (772449b4, a049d806)
        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="improvements-2"></a>Improvements</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><span class="strong"><strong>Security Improvements</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">
                Improve/harden input validation (many commits)
            </li><li class="listitem">
                Don’t expose immutable values as hidden formfields
                (03e3f2e7, 31955520)
            </li></ul></div></li><li class="listitem"><span class="strong"><strong>Code Refactoring</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">
                Replace deprecated API (8e6d01a0, 9cfbf8a1)
            </li><li class="listitem">
                Streamline idioms (50c5c2d3)
            </li><li class="listitem">
                Replace handcrafted HTML icons with new adp:icon adp tag
                (054c46cc, 8bb2cd6f)
            </li><li class="listitem">
                Replace custom calendar widget implementation with
                native HTML5 form fields and streamline input validation
                (6bd30d58, f5118fb4)
            </li></ul></div></li><li class="listitem"><span class="strong"><strong>Miscellaneous</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Improve spelling in catalog files (258edac5)

            </li><li class="listitem">

                Pass properties to master template as literal according
                to best practices (9598e88e)

            </li><li class="listitem">

                Improve API documentation (d924a307)

            </li><li class="listitem">

                Cleanup vestigial features/dead code (various commits)

            </li><li class="listitem">

                Port of downstream localization (90dbfa96)

            </li><li class="listitem">

                Various typos and formatting improvements

            </li><li class="listitem">

                Increase test suite of functionalities and cover 100% of
                public api (various commits)

            </li></ul></div></li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="deprecations-1"></a>Deprecations</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><code class="literal">calendar::adjust_date</code> -&gt; inlined the
            one occurrence (fbd97314)
        </li><li class="listitem"><code class="literal">calendar::from_sql_datetime</code>,
            <code class="literal">calendar::make_datetime</code> -&gt; not used
            upstream, superseded by modern clock idioms and HTML5
            features (bccd1c3a, 7264a2fe)
        </li><li class="listitem"><code class="literal">cal_outlook_gmt_sql</code> -&gt; last usage in
            the codebase 2002 (1ee22f96)
        </li><li class="listitem"><code class="literal">calendar::item::assign_permission</code>.
            <code class="literal">calendar::assign_permissions</code> -&gt;
            trivial wrappers over the permission api (a1ddaed5,
            f174fd12)
        </li></ul></div></div></div><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="changes-in-package-captcha"></a>Changes in package "captcha"</h4></div></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="features"></a>Features</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><span class="strong"><strong>Bot protection for your
            form</strong></span> implements template::widget::captcha. This
            can be used in forms exposed to the public to hinder
            automated bots. Based on the implementation at
            https://fossil-scm.org/

        </li><li class="listitem"><span class="strong"><strong>Scalable</strong></span> a new captcha is
            generated fast, from scratch and on the fly

        </li><li class="listitem"><span class="strong"><strong>No external dependencies</strong></span>
            this package does not require any external commands or
            libraries

        </li></ul></div></div></div><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="changes-in-package-categories"></a>Changes in package "categories"</h4></div></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="reforms-1"></a>Reforms</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Mark service contract implementations as private (efd3b8e5,
            886068d3)

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="improvements-3"></a>Improvements</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><span class="strong"><strong>Performance Improvements</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Create indices on FK constraints (e935a857)

            </li></ul></div></li><li class="listitem"><span class="strong"><strong>Security Improvements</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Add include contracts where missing (40b5bdc3, 667d9cdf,
                5d3fb337)

            </li><li class="listitem">

                Strengthen page contracts (1ad80ea6)

            </li></ul></div></li><li class="listitem"><span class="strong"><strong>Code Refactoring</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Replace deprecated
                <code class="literal">template::util::is_true</code> with inline
                string idiom (f2604994)

            </li><li class="listitem">

                Replace handcrafted HTML icons with new adp:icon adp tag
                (035bd73b)

            </li><li class="listitem">

                Better qualify command invocation (a693a8be)

            </li></ul></div></li><li class="listitem"><span class="strong"><strong>Miscellaneous</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Cleanup and formatting changes (various commits)

            </li><li class="listitem">

                Increase test suite of functionalities and reach 80.82%
                coverage of public api (various commits)

            </li><li class="listitem">

                Improved documentation of library file and public API
                (8da391b1)

            </li></ul></div></li></ul></div></div></div><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="changes-in-package-chat"></a>Changes in package "chat"</h4></div></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="new-features-2"></a>New Features</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><span class="strong"><strong>Anonymous chat
            participants</strong></span> (3a73986c, 214684f3): use newly
            introduced support for anonymous users built in xowiki to
            support not logged-in users

        </li><li class="listitem"><span class="strong"><strong>Chat include</strong></span> (c2ab5967) :
            Move the main chat rendering in an include to allow reuse in
            other contexts

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="bug-fixes-2"></a>Bug Fixes</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Fix typo in datamodel code affecting new installations
            (98d26cfa)

        </li><li class="listitem">

            Improve/fix Oracle compatibility (d3e0d69b, cb2e52d0,
            04e229f2)

        </li><li class="listitem">

            Allow for arbitrary arguments to be passed when extending
            inherited methods (95ca0c0e)

        </li><li class="listitem">

            Allow to persist chat messages also in the chat sweeper
            (4bf7bd59)

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="improvements-4"></a>Improvements</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><span class="strong"><strong>Performance Improvements</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                (Postgres only) Improve performances when fetching the
                available chat rooms using recursive permission api
                (56d47b31, 0b2cff50)

            </li></ul></div></li><li class="listitem"><span class="strong"><strong>Security Improvements</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Improve SQL quoting (e2146673)

            </li><li class="listitem">

                Harden page contracts and use new contract features from
                the core (43955d16, 148be6f4, 7f6b5c92)

            </li></ul></div></li><li class="listitem"><span class="strong"><strong>Code Refactoring</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Replace :xo::clusterwide -&gt; ::acs::clusterwide for
                cluster-aware chaching (76fbfe1f)

            </li><li class="listitem">

                Replace ::xo::db::sql -&gt; ::acs::dc as tcl abstraction
                for db stored procedures (76fbfe1f)

            </li><li class="listitem">

                Replace deprecated api (928793ce, cb2e52d0)

            </li><li class="listitem">

                Replace handcrafted HTML icons with new adp:icon adp tag
                (054c46cc)

            </li><li class="listitem">

                Reduce layers of redirection when accessing a chat room
                (4f57e272)

            </li></ul></div></li><li class="listitem"><span class="strong"><strong>Miscellaneous</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Prefer message keys from core packages (943daaa3)

            </li><li class="listitem">

                Cleanup vestigial features/dead code (23fe7d3a,
                b8d5da6d, d7434cae)

            </li><li class="listitem">

                Pass properties to master template as literal according
                to best practices (98a2b1ec)

            </li><li class="listitem">

                Extend test suite to 100% public API coverage (117c66e3,
                210e3f16, b2abc81c, fe60e3d1)

            </li><li class="listitem">

                Improve configurability and styling of the chat
                includelet (54bb236f, 289ddee6)

            </li><li class="listitem">

                Streamline idioms (2b0bd209)

            </li><li class="listitem">

                Replace legacy message keys (a465cf76)

            </li><li class="listitem">

                Improve localization (0252ed50)

            </li></ul></div></li></ul></div></div></div><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="changes-in-package-dotlrn"></a>Changes in package "dotlrn" and associated packages</h4></div></div></div><p>
    </p><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="reforms-2"></a>Reforms</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><span class="strong"><strong>dotlrn</strong></span>:

          <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Deactivate obsolete SQL function in creation script
                (sql/postgresql/dotlrn-create.sql). This complements
                commit 3a280c7e in acs-kernel (commit 1b845ba0).

            </li><li class="listitem">

                Use dotlrn-bootstrap3-theme as default theme (commit
                c6547eb8).

            </li></ul></div></li><li class="listitem"><span class="strong"><strong>theme-zen</strong></span>: Adapt to
            commit 3a280c7e (acs-kernel) and c6547eb8 (dotlrn) (commit
            6d50cb9b).

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="improvements-5"></a>Improvements</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><span class="strong"><strong>Performance Improvements</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><span class="strong"><strong>dotlrn</strong></span>: Prefer APIs
                returning cached values before querying the DB using
                <code class="literal">site_node::</code> (commit 4d025e63)

            </li><li class="listitem"><span class="strong"><strong>dotlrn-fs</strong></span>: Prefer
                APIs returning cached values before querying the DB
                using <code class="literal">site_node::</code> (39bcaf3f)

            </li></ul></div></li><li class="listitem"><span class="strong"><strong>Security Improvements</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><span class="strong"><strong>dotlrn</strong></span>: Mitigating
                potential XSS attacks using NaviServer own
                <code class="literal">ns_quotehtml</code> (commit 4476e815)

            </li></ul></div></li><li class="listitem"><span class="strong"><strong>Code Refactoring</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><span class="strong"><strong>dotlrn</strong></span>:

              <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem">

                    Replace deprecated
                    <code class="literal">notification::get_interval_id</code>
                    with
                    <code class="literal">notification::interval::get_id_from_name</code>
                    (commit 871dd502)

                </li><li class="listitem">

                    Replace deprecated
                    <code class="literal">notification::get_delivery_method_id</code>
                    with
                    <code class="literal">notification::delivery::get_id</code>
                    (commit a9760fc4)

                </li><li class="listitem">

                    Replace deprecated
                    <code class="literal">template::util::is_true</code> with
                    <code class="literal">[string is true -strict $value]</code>
                    (commit 38981891)

                </li><li class="listitem">

                    Replace deprecated
                    <code class="literal">util_commify_number</code> with
                    <code class="literal">lc_numeric</code> (commit 7c14688e)

                </li><li class="listitem">

                    Replace deprecated
                    <code class="literal">twt::user::create</code> and
                    <code class="literal">twt::user::delete</code> with the
                    respective <code class="literal">acs::test::user::</code>
                    counterparts (commit dea8673e)

                </li><li class="listitem">

                    Cleanup usage of deprecated API
                    <code class="literal">template::util::nvl</code> (commit
                    0775f434, 73b52fba)

                </li><li class="listitem">

                    Cleanup usage of deprecated API
                    <code class="literal">acs_privacy::</code> (commit d31c3b6f,
                    9ae5aa4a)

                </li><li class="listitem">

                    Replace deprecated
                    <code class="literal">bulk_mail::parameter</code> with
                    <code class="literal">parameter::get</code> (commit b10c5f26)

                </li><li class="listitem">

                    Replace deprecated
                    <code class="literal">forum::new_questions_deny</code> and
                    <code class="literal">forum::new_questions_allow</code> with
                    <code class="literal">permission::grant</code> (commit
                    4880f884)

                </li><li class="listitem">

                    Replace custom calendar widget implementation with
                    native HTML5 fields (commit 113b1cb4)

                </li></ul></div></li><li class="listitem"><span class="strong"><strong>dotlrn-bm</strong></span>: Replace
                deprecated <code class="literal">bulk_mail::pretty_name</code>
                with <code class="literal">parameter::get</code> (commit b6b7aec1)

            </li><li class="listitem"><span class="strong"><strong>dotlrn-calendar</strong></span>:
                Reform handling of admin permissions (commit ce9e27d4,
                6a9ada80)

            </li><li class="listitem"><span class="strong"><strong>dotlrn-forums</strong></span>:

              <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem">

                    Replace deprecated
                    <code class="literal">notification::get_interval_id</code>
                    with
                    <code class="literal">notification::interval::get_id_from_name</code>
                    (commit d77b24b7)

                </li><li class="listitem">

                    Replace deprecated
                    <code class="literal">notification::get_delivery_method_id</code>
                    with
                    <code class="literal">notification::delivery::get_id</code>
                    (commit 075b8adc)

                </li></ul></div></li><li class="listitem"><span class="strong"><strong>dotlrn-fs</strong></span>: Replace
                Naviserver <code class="literal">ns_mktemp</code> with
                <code class="literal">ad_tmpnam</code> (commit f5fd2c96)

            </li><li class="listitem"><span class="strong"><strong>dotlrn-homework</strong></span>:

              <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem">

                    Alter reference to db-error file in acs-subsite
                    (commit d47e5f2c)

                </li><li class="listitem">

                    Replace deprecated
                    <code class="literal">util_commify_number</code> with
                    <code class="literal">lc_numeric</code> (commit 990b0b0a)

                </li><li class="listitem">

                    Replace handcrafted HTML icons with adp:icon adp tag
                    (commit 3f1557c2)

                </li></ul></div></li><li class="listitem"><span class="strong"><strong>dotlrn-news</strong></span>:

              <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem">

                    Replace deprecated
                    <code class="literal">notification::get_interval_id</code>
                    with
                    <code class="literal">notification::interval::get_id_from_name</code>
                    (commit 586cc6ae)

                </li><li class="listitem">

                    Replace deprecated
                    <code class="literal">notification::get_delivery_method_id</code>
                    with
                    <code class="literal">notification::delivery::get_id</code>
                    (28661484)

                </li></ul></div></li><li class="listitem"><span class="strong"><strong>dotlrn-static</strong></span>: Fix
                applet mount point (commit 233e0c6c)

            </li><li class="listitem"><span class="strong"><strong>new-portal</strong></span>:

              <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem">

                    Replace <code class="literal">export_ns_set_vars</code> with
                    <code class="literal">export_vars</code> (commit e8ab835d)

                </li><li class="listitem">

                    Prefer adp:icon adp tag over handcrafted HTML icons
                    (commit 7afadf3b)

                </li></ul></div></li></ul></div></li><li class="listitem"><span class="strong"><strong>Miscellaneous</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><span class="strong"><strong>All packages</strong></span>:

              <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem">

                    Cleanup and formatting (various commits)

                </li><li class="listitem">

                    Strengthen page contracts (various commits)

                </li><li class="listitem">
                    Document public API, e.g., in new-portal,
                    dotlrn-dotlrn (e.g., commit 75656f6f, 05540825)
                </li><li class="listitem">

                    Improve test coverage, e.g., in
                    <code class="literal">dotlrn-portlet</code> (e.g., commit
                    dcfe916b, 712e8793, 59ec97b0)

                </li></ul></div></li></ul></div></li></ul></div></div></div><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="changes-in-package-faq"></a>Changes in package "faq"</h4></div></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="new-features-3"></a>New Features</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><span class="strong"><strong>faq::new API</strong></span> (1fc77330):
            an API to create an FAQ, also useful for testing

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="bug-fixes-3"></a>Bug Fixes</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Fixes for Oracle compatibility (3e5418a3)

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="reforms-3"></a>Reforms</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Mark service contract implementations as private (987ef426)

        </li><li class="listitem">

            Mark apm callbacks as private (6861af77)

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="improvements-6"></a>Improvements</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><span class="strong"><strong>Security Improvements</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Harden page contract validation (a2904377, 87d05896,
                a4c9fc52)

            </li></ul></div></li><li class="listitem"><span class="strong"><strong>Code Refactoring</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Replace deprecated <code class="literal">twt::user::create</code>
                and <code class="literal">twt::user::delete</code> with their
                acs::test::user:: counterpart (27286797)

            </li><li class="listitem">

                Replace handcrafted HTML icons with new adp:icon adp tag
                (17acc438, 5a7ce6b6)

            </li><li class="listitem">

                Replace <code class="literal">rp_form_put</code> with plain ns_set
                idioms (d7deda66)

            </li></ul></div></li><li class="listitem"><span class="strong"><strong>Miscellaneous</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Cleanup and formatting changes (various commits)

            </li><li class="listitem">

                Increase test suite of functionalities and cover 100% of
                public api (various commits)

            </li></ul></div></li></ul></div></div></div><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="changes-in-package-file-storage"></a>Changes in package "file-storage"</h4></div></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="bug-fixes-4"></a>Bug Fixes</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Make <code class="literal">fs::get_file_package_id</code> more robust
            to cases where the package_id is not set on the object
            itself (bbbbf93b)

        </li><li class="listitem">

            Fixes for Oracle compatibility (9a5b9cf4, 0d4331cb,
            de75d648)

        </li><li class="listitem">

            Fix regression when the files list is rendered in
            <span class="quote">“<span class="quote">list</span>”</span> format (d0eecbe4)

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="reforms-4"></a>Reforms</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Make oacs-dav an optional, uninstallable dependency
            (c8e3b5f8)

        </li><li class="listitem">

            Make Service Contract implementation private and use the
            abstract api instead (81ef9be7, 6eee7dbd, 846b226b,
            f56b331a)

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="improvements-7"></a>Improvements</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><span class="strong"><strong>Performance Improvements</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                (Postgres only) Improve performances when fetching
                folder files using recursive permission api (02f64379)

            </li></ul></div></li><li class="listitem"><span class="strong"><strong>Security Improvements</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Improve server and client-side input validation (various
                commits)

            </li></ul></div></li><li class="listitem"><span class="strong"><strong>Code Refactoring</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Reduce divergency between Oracle and Postgres codebase
                (55e70c4f, 2cf7bbf5)

            </li><li class="listitem">

                Replace deprecated
                <code class="literal">template::util::tcl_to_sql_list</code> with
                NaviServer own <code class="literal">ns_dbquotelist</code>
                (8b1a62d0)

            </li><li class="listitem">

                Replace deprecated <code class="literal">twt::user::create</code>
                and <code class="literal">twt::user::delete</code> with their
                acs::test::user:: counterpart (cbc632d0)

            </li><li class="listitem">

                Cleanup obsolete error catching (d99eccfb)

            </li><li class="listitem">

                Replace handcrafted HTML icons with new adp:icon adp tag
                (602c473d, 651ab668, 53b1248d)

            </li><li class="listitem">

                Replace <code class="literal">ad_tmpnam</code> with
                <code class="literal">ad_opentmpfile</code> and
                <code class="literal">ad_mktmpdir</code>, safer from race
                conditions (576d51a1, 8a9ac2b9)

            </li></ul></div></li><li class="listitem"><span class="strong"><strong>Miscellaneous</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Cleanup and formatting (various commits)

            </li><li class="listitem">

                Improve test suite and cover 100% of public api (various
                commits)

            </li></ul></div></li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="deprecations-2"></a>Deprecations</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><code class="literal">fs::add_created_version</code> -&gt; behavior
            specific to this proc was to
            <code class="literal">fs::add_version</code>, largely similar
            (815cbaae)

        </li><li class="listitem"><code class="literal">fs::torrent::get_hashsum</code> -&gt; superseded
            by NaviServer <code class="literal">ns_md</code> command (aaf2751d)

        </li><li class="listitem"><code class="literal">fs::item_editable_p</code>,
            <code class="literal">fs::item_editable_info</code> -&gt; Unused,
            unclear usefulness (86cd3917)

        </li><li class="listitem"><code class="literal">fs::get_archive_extension</code> -&gt; trivial
            wrapper over the parameter api (aa63e153)

        </li><li class="listitem"><code class="literal">fs::get_folder_contents</code> -&gt; Not used in
            the codebase, same result can be achieved with other api
            (72e444b8)

        </li></ul></div></div></div><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="changes-in-package-forums"></a>Changes in package "forums"</h4></div></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="bug-fixes-5"></a>Bug Fixes</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Fix broken message key (74cadd4f)

        </li><li class="listitem">

            Fixes for Oracle compatibility (f5db030e)

        </li><li class="listitem">

            Rely less on values provided by the connection (f85185af)

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="reforms-5"></a>Reforms</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Adapt template::element calls after replacing
            <code class="literal">template::util::get_opts</code> (16b22e9e)

        </li><li class="listitem">

            Mark service contract implementations as private (bb6e3b3b)

        </li><li class="listitem">

            Use UTF-8 emojis instead of actual images to render
            supported smileys in forum posts (335f1ede)

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="improvements-8"></a>Improvements</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><span class="strong"><strong>Performance Improvements</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Avoid transaction when unnecessary (aeb4e876)

            </li><li class="listitem">

                Use cached api when detecting if attachments are
                supported (83b9a2e8)

            </li></ul></div></li><li class="listitem"><span class="strong"><strong>Security Improvements</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Improve server response in error situations (b2e833ab)

            </li><li class="listitem">

                Harden page contract validation (c92794b8, 22c992f2,
                655eea7b, 619b2580, c403e313, 189442f8, 0a4c5d1d)

            </li><li class="listitem">

                Increase permission checking (6ddf512d)

            </li></ul></div></li><li class="listitem"><span class="strong"><strong>Code Refactoring</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Pass properties in adp consistently with @….;literal@
                best practice (dc2b6f8f, 44d3483e)

            </li><li class="listitem">

                Replace deprecated
                <code class="literal">template::util::is_true</code> with inline
                string idiom (88c779b5)

            </li><li class="listitem">

                Replace handcrafted HTML icons with new adp:icon adp tag
                (1b6adbcb, 0cf9dfe4)

            </li></ul></div></li><li class="listitem"><span class="strong"><strong>Miscellaneous</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Cleanup and formatting changes (various commits)

            </li><li class="listitem">

                Increase test suite of functionalities and cover 100% of
                public api (various commits)

            </li></ul></div></li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="deprecations-3"></a>Deprecations</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><code class="literal">forum::new_questions_allowed_p</code> -&gt;
            Trivial shotrhand to forum::get (5e7c3e01)

        </li><li class="listitem"><code class="literal">forum::new_questions_allow</code> and
            <code class="literal">forum::new_questions_deny</code> -&gt; Trivial
            shorthands to forum::edit

        </li><li class="listitem"><code class="literal">forum::message::get_attachments</code> -&gt;
            Unused and repleaceable by other API

        </li></ul></div></div></div><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="changes-in-package-general-comments"></a>Changes in package "general-comments"</h4></div></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="bug-fixes-6"></a>Bug Fixes</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Fixes for Oracle compatibility (e6fdab8b)

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="reforms-6"></a>Reforms</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Reimplement add/edit UI to use ad_form and reduce
            duplication (0842ac32)

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="improvements-9"></a>Improvements</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><span class="strong"><strong>Security Improvements</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Harden page contract validation (a17a883b, 438b62a5,
                150c40c4, c08961bd, 993e67b1, 026075fc, b041c11b,
                b6e063dc, dc08e85c, c34e943b)

            </li></ul></div></li><li class="listitem"><span class="strong"><strong>Code Refactoring</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Replace deprecated <code class="literal">export_ns_set_vars</code>
                with alternative idioms (4892cc8d)

            </li><li class="listitem">

                Replace deprecated <code class="literal">ad_convert_to_html</code>
                with <code class="literal">ad_html_text_convert</code> (e48e5624)

            </li></ul></div></li></ul></div></div></div><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="changes-in-package-proctoring-support"></a>Changes in package "proctoring-support"</h4></div></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="new-features-4"></a>New Features</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><span class="strong"><strong>Support for mock exams</strong></span>
            (commit 114d489e): introduce parameter record_p in the main
            proctoring include allowing to turn off artifacts
            collection. Useful FOR mock exams.

        </li><li class="listitem"><span class="strong"><strong>Artifacts data model</strong></span>
            (commit 9acb6bc8, f9206d9e): proctoring artifacts are now
            stored in actual database tables and not only on the
            filesystem.

        </li><li class="listitem"><span class="strong"><strong>Test pages</strong></span> (commit
            30ea5f4b): the default proctoring installation provides a
            fully-functional test environment of the admin and regular
            user functionalities.

        </li><li class="listitem"><span class="strong"><strong>Push updates for new
            artifacts</strong></span> (commit 337d8cb6): the proctoring
            display UI now uses websockets to receive push updates from
            the server when new artifacts are available.

        </li><li class="listitem"><span class="strong"><strong>Artifacts review UI</strong></span>
            (commit 99cdda4a and various others): the proctoring display
            UI now enables admin users to review proctoring artifacts
            via comments or flagging.

        </li><li class="listitem"><span class="strong"><strong>Red border</strong></span> (commit
            d20cb434): allow one to display an additional border around
            the proctored window. Useful to increase the visibility of
            the proctored session in a classroom.

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="reforms-7"></a>Reforms</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Proctoring enforcing: captive-portal the proctoring session
            using a callback mechanism, rather than via includes in the
            master template (commit 9acb6bc8).

        </li><li class="listitem">

            Stop the proctoring session from the client side when no
            artifacts are sent for too long (commit 0b87b9e0).

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="bug-fixes-7"></a>Bug Fixes</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Be more robust in case of client-side error conditions
            (commit 64d4dde9, 2c7ff02a, 7dc4239a)

        </li><li class="listitem">

            Use PiP to circumvent browser powersaving that would shut
            down MediaStreams when a browser is out of focus. (commit
            0b87b9e0, c0d97c91)

        </li><li class="listitem">

            Relax enforcing of duplicated images for proctored desktops
            (commit c72ddbb3)

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="improvements-10"></a>Improvements</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><span class="strong"><strong>Code Refactoring</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Replace deprecated api (various commits)

            </li><li class="listitem">

                Modernize javascript idioms (various commits)

            </li><li class="listitem">

                Maintain an adequate look and feel using both Bootstrap5
                and Bootstrap3 (70a0f52c, f07dfc06, e913ee2b, 54d4f3cc
                and others)

            </li><li class="listitem">

                Drop custom implementation of <span class="quote">“<span class="quote">lazy
                loading</span>”</span> for the proctoring display UI and rely
                on modern native browser features instead (commit
                90d2404c)

            </li></ul></div></li><li class="listitem"><span class="strong"><strong>Usability</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Improve usability of the proctoring display UI on mobile
                and when using a keyboard (various commits)

            </li></ul></div></li><li class="listitem"><span class="strong"><strong>Miscellaneous</strong></span><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Improve integration with master template (9acb6bc8,
                44729649)

            </li><li class="listitem">

                Streamline idioms (various commits)

            </li><li class="listitem">

                Improved documentation

            </li><li class="listitem">

                Increase test suite of functionalities and cover 100% of
                public api (various commits)

            </li><li class="listitem">

                Extend package localization. Currently English, German,
                Italian and Spanish are supported.

            </li></ul></div></li></ul></div></div></div><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="changes-in-package-xotcl-core"></a>Changes in package "xotcl-core"</h4></div></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="new-features-5"></a>New Features</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Added value checker <code class="literal">signed</code> (commit
            1ce581a)

        </li><li class="listitem">

            Added value checker <code class="literal">oneof</code> (commits
            58bc938, 2dbadad, 65575bf, 58bc938).

        </li><li class="listitem">

            Added value checker <code class="literal">cr_item_of_package</code>
            (commit 6fc46f3)

        </li><li class="listitem">

            Provided consistent sorting for Database and Tcl sorts
            (commit 6effe16)

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="bug-fixes-8"></a>Bug Fixes</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Avoiding double quoting (commit 08386db).

        </li><li class="listitem">

            Fixed potential memory leaks

          <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Free explicitly answer <code class="literal">ns_set</code> in
                database <span class="quote">“<span class="quote">sets</span>”</span> method (commit 158a831)

            </li><li class="listitem">

                Free <code class="literal">ns_set</code> storage more eager (when
                e.g. large queries are used in longer loops) (commit
                3d6b05a)

            </li></ul></div></li><li class="listitem">

            Compatibility Fixes for Oracle 19c (commit de4a9a5, 88f8521,
            1408e2b)

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="improvements-11"></a>Improvements</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Security improvements:

          <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Support for <code class="literal">form_parameter</code> specs with
                value checkers added (commit 64bb847).

            </li><li class="listitem">

                harden page contracts (commit b0c282d)

            </li></ul></div></li><li class="listitem">

            Performance improvements:

          <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Improved prepared-statement handling (commit fac52ce)

            </li><li class="listitem">

                Various other changes such as e.g. d22121d

            </li></ul></div></li><li class="listitem">

            Unified package parameter handing between xo* and oacs-core
            (commit 66ee181)

        </li><li class="listitem">

            Reduced verbosity of logging for streamlined output (commit
            0553811).

        </li><li class="listitem">

            Stop sending messages to other (potentially stopped) thread
            to avoid log messages (commit 0aa8c98).

        </li></ul></div></div></div><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="changes-in-package-xowiki"></a>Changes in package "xowiki"</h4></div></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="new-features-6"></a>New Features</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            GUI improvements

          <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                New abstraction xowiki::CSS to provide portability
                between different frameworks and version of frameworks
                (commit 99e3331c)

            </li><li class="listitem">

                Added <code class="literal">xowiki::bootstrap::card</code> for
                increased configurability (commits 97685004, 4e09efa9,
                136edcc5).

            </li><li class="listitem">

                Use adp:icon for better cross framework compatibility
                (commits 562e9e48, 19407b34, 71606059)

            </li><li class="listitem">

                Support for Bootstrap5 (commits 97685004, ddae6214,
                701612b7, a073060e, de6f0f48, 694c61b5, 48efaa9e,
                57a7e91a, b71aacc0, 07be172b and several more)

            </li><li class="listitem">

                Added native CSS classes for Tree renderer and made
                TreeRenderer more configurable, reduce YUI (commit
                83eafdcf).

            </li><li class="listitem">

                Beautify display of CSS tree renderer for deeper trees
                (commit ab624faa).

            </li></ul></div></li><li class="listitem">

            Chat improvements

          <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Reduce server-side guessing of browser capabilities and
                minimize mode-specific JavaScript code (commit
                8d98e9bf).

            </li><li class="listitem">

                Support for anonymous users in chat class, allowing
                mixed participation of authenticated and
                non-authenticated users (commit d929ec45).

            </li></ul></div></li><li class="listitem">

            Drag and Drop improvements

          <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Support for drag &amp; drop for reordering items for
                mobile devices (commit 4489907b).

            </li><li class="listitem">

                Extended functionality of the DropZone widget (commit
                d65bd411).

            </li></ul></div></li><li class="listitem">

            Added support for archiving of items (commit 4d17aa0e).

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="reforms-8"></a>Reforms</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Generalized handling of error pages in disconnected stage
            (commit b3b677d4).

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="configuration-changes-1"></a>Configuration Changes</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Update CDN sources where necessary (commit d4d0d85e).

        </li><li class="listitem">

            Updates of external libraries and CDN providers (commits
            d4d0d85e, f71db88b, 2986f329, f22f9b0b, e3b9f244, c63f61c9)

        </li><li class="listitem">

            Improved Parameterization *Ability to parameterize
            <code class="literal">www-delete</code> and
            <code class="literal">www-toggle-publish-status</code> with
            <code class="literal">return_url</code> for workflow-specific behavior
            (commit abba6cd1).

          <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                New package parameter:
                <code class="literal">PackageInitParameter</code> for
                instance-specific package behavior (commit cc5b9959).

            </li><li class="listitem">

                Added support for passing parameter specs of the form
                <code class="literal">parameter_name:value_constraint</code> to
                <code class="literal">xowiki::Package.get_parameter</code> (commit
                9df95cb3).

            </li></ul></div></li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="bug-fixes-9"></a>Bug Fixes:</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Test reproducing a bug in
            <code class="literal">acs::test::xpath::get_form_values</code> proc
            (commit f495cac3).

        </li><li class="listitem">

            Fixed test case returned violation on plain instance (commit
            78ec506d).

        </li><li class="listitem">

            Fixed xowiki
            <code class="literal">create_form_with_form_instance</code> automated
            test (commit a9a37dcc).

        </li><li class="listitem">

            Handle more gracefully the case of missing files on the
            filesystem (commit 72c1aeeb).

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="improvements-12"></a>Improvements:</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Improved autosave support (commit b373091c).

        </li><li class="listitem">

            Added support to check the file types of uploaded content
            (commit 80756c4b).

        </li><li class="listitem">

            Improved portability

          <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Added missing Oracle support for Oracle 19c (commit
                777eadbc).

            </li><li class="listitem">

                Fix for Oracle 19c issues (commit 777eadbc).

            </li></ul></div></li><li class="listitem">

            Improved error handling

          <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Improved handling of pages with
                <code class="literal">parent_id</code> == 0 (commit 7637ff52).

            </li><li class="listitem">

                Improved error message clarity and handling (multiple
                commits).

            </li><li class="listitem">

                Improved warning message (commit 80c69179).

            </li><li class="listitem">

                Various small improvements in handling form pages and
                error messages (commit 1c11ce20).

            </li></ul></div></li><li class="listitem">

            Various API improvements:

          <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Updated interface for
                <code class="literal">Page.create_form_page_instance</code>
                (commit c0ee21d6).

            </li></ul></div></li><li class="listitem">

            Security improvements:

          <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Enhanced form and query variable validation (commit
                d405042d).

            </li><li class="listitem">

                Improved safety of SQL queries (commit be15be72).

            </li></ul></div></li><li class="listitem">

            Code Maintenance:

          <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Cleanup and modernization of code, removal of obsolete
                and commented code (multiple commits).

            </li><li class="listitem">

                Extended regression test (commit 8daa654b).

            </li><li class="listitem">

                Improved comments (commit 9e9a99f5).

            </li><li class="listitem">

                Improved documentation and cleanup (commit 27609be3).

            </li></ul></div></li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="deprecations-4"></a>Deprecations:</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Cleanup of deprecated API references and methods (commit
            b0a9b875, commit fc1e48d1, commit 2c490318).

        </li><li class="listitem">

            Logging of deprecated usages unified under
            <code class="literal">ad_log_deprecated</code> (commit 56d4b9d5).

        </li><li class="listitem">

            Removal of features and scripts no longer in use (commit
            726cc0dd, commit c8100365).

        </li><li class="listitem">

            Added <span class="quote">“<span class="quote">@see</span>”</span> to deprecated proc (commit
            bb2fa23a).

        </li><li class="listitem">

            Got rid of legacy message key
            <code class="literal">menu-Clipboard-Copy</code> (commit ba901036).

        </li></ul></div></div></div><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="changes-in-package-xowf"></a>Changes in package "xowf"</h4></div></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="new-features-7"></a>New Features</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Improved Support E-Learning applications (mostly inclass
            exam)

          <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Support for restricting access to exams based on IP
                addresses (7fc8473).

            </li><li class="listitem">

                Drag and Drop interface for feedback files (fd68c22).

            </li><li class="listitem">

                Support for pool questions in the test-item family (No
                specific commit hash related to this feature was found
                in the provided content).

            </li><li class="listitem">

                Improved support for viewing and downloading exam
                results (250d5a4).

            </li><li class="listitem">

                Added Support for viewing/altering all configuration
                options for inclass exams via modal dialogs (39d5063).

            </li><li class="listitem">

                Added Parameter to allow/disallow page translation and
                spell checker for exams (commits 97e383e, 20a2d49).

            </li></ul></div></li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="configuration-changes-2"></a>Configuration Changes</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Turn off production mode by default (363c839).

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="bug-fixes-10"></a>Bug Fixes</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Fixed achieved points in exam statistics per question
            (f05631f).

        </li><li class="listitem">

            Fix for potential loss of statistics for auto-graded exams
            (fc03d5f).

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="improvements-13"></a>Improvements</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Improved Maintainability: Added Site-wide admin pages for
            xowf (cbb3bc8).

        </li><li class="listitem">

            Improved Performance: Added support for shared workflow
            definitions (2628b6f).

        </li><li class="listitem">

            Improved GUI:

          <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Improved support for Bootstrap5 (e.g. commits 8623ebd
                and a5e1f6c).

            </li><li class="listitem">

                Enhanced usability and styling for inclass exams and
                workflows (3d33b2a).

            </li></ul></div></li></ul></div></div></div><div class="sect3"><div class="titlepage"><div><div><h4 class="title"><a name="changes-in-package-xotcl-request-monitor"></a>Changes in package
    "xotcl-request-monitor"</h4></div></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="new-features-8"></a>New Features</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Ability to order by time values in long-calls listing
            (Commit 031ee35).

        </li><li class="listitem">

            Support for ordering long-calls by start time or by end time
            in long-calls listing (Commit 7c9ffe9).

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="configuration-changes-3"></a>Configuration Changes</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Added configurability to watchdog with parameters like
            <span class="quote">“<span class="quote">-maxWaiting</span>”</span> and <span class="quote">“<span class="quote">-maxRunning</span>”</span>
            (Commit 60ba4e3).

        </li></ul></div></div><div class="sect4"><div class="titlepage"><div><div><h5 class="title"><a name="improvements-14"></a>Improvements</h5></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">

            Security Improvements

          <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem">

                Protect query-parameters against exceptions with empty
                values (Commit 176a32b).

            </li><li class="listitem">

                Added safety measures for potential DOS attacks and
                improved request blocking (Commit ef39b79).

            </li><li class="listitem">

                Improved strictness of tests (Commit ceb4a88).

            </li><li class="listitem">

                Improved description of package parameters (Commit
                ff8c44d)

            </li><li class="listitem">

                Enhanced the initial population of request-monitor
                counters for robustness (Commit 622d8f2).

            </li><li class="listitem">

                Switch from <code class="literal">xo::db::sql</code> to
                <code class="literal">acs::dc</code> interface (Commit a2d4688).

            </li></ul></div></li></ul></div></div></div></div></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-10-0"></a>Release 5.10.0</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
      The release of OpenACS 5.10.0 contains the 93 packages of the oacs-5-10
      branch.  These packages include the OpenACS core packages, the major
      application packages (e.g. most the ones used on OpenACS.org), and
      DotLRN 2.10.0. 
    </p></li><li class="listitem"><p>Functional improvements
	</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><p>Features:
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>Support for range types in .xql files:
			</p><p>PostgreSQL supports range types since 9.5. When using range types, square braces have to be used in SQL statements. Since OpenACS uses always Tcl substitution in .xql files, and OpenACS does NOT allow backslash substitution in these files, square brackets could not be escaped and therefore not be used in .xql files so far. This change allows now a developer to deactivate the substitution by passing e.g. <code class="computeroutput">-subst none</code> to the db_* command using the .xql file. Valid values for <code class="computeroutput">-subst</code> are <code class="computeroutput">all</code>, <code class="computeroutput">none</code>, <code class="computeroutput">vars</code>, and <code class="computeroutput">commands</code>, default is <code class="computeroutput">all</code> which is exactly the behavior of previous releases. Therefore, this change is fully backward compatible.</p><p>
			</p></li><li class="listitem"><p>Registry for .js and .css libraries: allow besides classical URLs symbolic names for loading external resources (e.g. jquery), this makes it easier to upgrade libraries in multiple packages (without running into problems with duplicate versions) and supports switching between CDN and local pathsURN. The existing implementation is based on URNs and extends the existing template-head API to support registration for URNs. A URN provides an abstraction and a single place for e.g. updating references to external resources when switching between a CDN and a locally stored resource, or when a resource should be updated. Instead of adding e.g. a CDN URL via template::head::add_script, one can add an URN and control its content from a single place. Use common namespaces for OpenACS such as <code class="computeroutput">urn:ad:css:* </code>and <code class="computeroutput">urn:ad:js:*</code>.
			</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
				</p><p>Register URNs:</p><p>
				Example provider (e.g. in some theme):

				</p><pre class="programlisting">
   template::register_urn \ 
       -urn urn:ad:js:jquery \ 
       -resource /resources/xowiki/jquery/jquery.min.js
</pre><p>
				</p></li><li class="listitem"><p>
				</p><p>The registered URN can be used like classical URL after registration.</p><p>

				</p><p>Example consumer:</p><p>

				</p><pre class="programlisting">
   template::head::add_javascript -src urn:ad:js:jquery</pre><p>
				</p></li><li class="listitem"><p>Declare composite files: Provide an interface to define that a .js file or a .css file contains multiple other .js/.css files in order to reduce the number of requests.
				</p><pre class="programlisting">
   template::head::includes -container urn:js::style.js -parts {urn:ad:js:jquery ...}</pre><p>
				</p></li></ul></div><p>
			</p></li><li class="listitem"><p>Improved API browser: Visualization for code dependencies (which procs calls what, from where is a proc being called) and test-coverage</p></li><li class="listitem"><p>Warn site administrators about expiring certificates</p></li><li class="listitem"><p>Added text/markdown to the accepted text formats or rich-text widget</p></li><li class="listitem"><p>Additional input types (and widgets) for <code class="computeroutput">ad_form</code>:
			</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>checkbox_text</p></li><li class="listitem"><p>color</p></li><li class="listitem"><p>email</p></li><li class="listitem"><p>tel</p></li><li class="listitem"><p>url</p></li><li class="listitem"><p>number</p></li><li class="listitem"><p>file (multiple)</p></li><li class="listitem"><p>h5date and h5time: date and time fields using native HTML5 visualization and input normalization</p></li></ul></div><p>
			</p></li><li class="listitem"><p>Added additional page_contract filter: oneof(red|green|blue)</p></li><li class="listitem"><p><code class="computeroutput">template::add_event_listener</code> and <code class="computeroutput">template::add_confirm_handler</code> now can target elements by CSS selector</p></li><li class="listitem"><p>
			</p><p>Improved support for streaming HTML: The new API function <code class="computeroutput">template::collect_body_scripts</code> can be used to get the content of template::script or CSP calls (<code class="computeroutput">template::add_body_script</code>, <code class="computeroutput">template::add_event_listener</code>, <code class="computeroutput">template::add_body_handler</code>, <code class="computeroutput">template::add_script</code>) when streaming HTML (incremental HTML) is used. Before, these call could bot be used for streaming HTML.</p><p>
			</p></li></ul></div><p>
		</p></li><li class="listitem"><p>Reforms:
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>Login:
			</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Get rid of bugging "login page expired" messages. The 17 years old construct was replaced by newer means to avoid caching of form values from the login form. Admins of existing sites should set the kernel parameter <code class="computeroutput">LoginPageExpirationTime</code> to 0</p></li></ul></div><p>
			</p></li><li class="listitem"><p>Forums:
			</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Removed hard-coded dependency with registered_users group when checking forum permissions</p></li><li class="listitem"><p>Don't rely so heavily on acs_permissions to model forum configuration, as this can have unexpected consequences in convoluted multi-group/multi-subsite scenarios. Prefer simpler table attributes instead</p></li><li class="listitem"><p>New style of attachments to the forums, allowing multiple attachments to a single message directly from the message post page, using the multiple file input widget. Retain compatibility with old style attachments, using the new 'AttachmentStyle' package instance parameter. Currently, this supports two values: 'simple' (new behavior) and 'complex' previous behavior.</p></li></ul></div><p>
			</p></li><li class="listitem"><p>Chat:
			</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Revamping of the GUI</p></li><li class="listitem"><p>Responsiveness</p></li><li class="listitem"><p>Full screen mode</p></li><li class="listitem"><p>Skins support (minimal, classic and bubbles, included): Skins are located in the new /packages/xowiki/www/resources/chat-skins/ directory. New skins can be created by just adding the css and js files in the skins directory, and naming them accordingly (chat-$SKIN_NAME.{js|css}).</p></li><li class="listitem"><p>Avatars (can be enabled per room)</p></li><li class="listitem"><p>Number of active users in chat</p></li><li class="listitem"><p>Tab notifications of new messages</p></li><li class="listitem"><p>Web Notifications:
				</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><p>https://www.w3.org/TR/notifications/</p></li><li class="listitem"><p>https://developer.mozilla.org/en-US/docs/Web/API/Notifications_API/Using_the_Notifications_API</p></li></ul></div><p>
				</p></li></ul></div><p>
			</p></li><li class="listitem"><p>acs-lang:
			</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>admin pages:
				</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><p>Added the option to unregister (delete permanently the message key from all locales) a message key that has been already marked as deleted. Useful for cleaning up old message keys.</p></li><li class="listitem"><p>Added the option to undelete, using the new ::message::undelete proc.</p></li><li class="listitem"><p>Made number and category (untranslated/deleted/...) of messages coherent in all pages.</p></li><li class="listitem"><p>Added the columns 'total' and 'deleted' to the index page.</p></li></ul></div><p>
				</p></li><li class="listitem"><p>object_id reference: it is now possible to associate a message key to an object_id in a way that e.g. when the object is deleted, so is the message key. This addresses cases such as the message keys generated by group creation or by the new XoWiki localized fields</p></li></ul></div><p>
			</p></li><li class="listitem"><p>Notifications:
			</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Improved scalability for notifications: One of the most expensive operations in large site is the cleanup for notification_requests in situations, where the user has lost permissions on an object, on which the user wanted to receive notifications. This check was performed previously in <code class="computeroutput">notification::sweep::cleanup_notifications</code> via a permission check over all notification requests, which can be very costly on large sites. This change moves this cleanup into the actual notification sending, where the permissions have to be sent anyhow.</p></li><li class="listitem"><p>When sending a notification on behalf of a person, if the system is not configured to process replies to notification, do not set the reply-to address to anything different than the sender</p></li><li class="listitem"><p>Notifications: proper cleanup of acs_objects resulting from the deletion of dynamic notification requests</p></li></ul></div><p>
			</p></li><li class="listitem"><p>User/Person/Party API: rework and rationalize caching of all party, person and user API, create separate caches for each of these types, make the API and return dicts. acs_user::get will not fail anymore with non-existing user.</p></li><li class="listitem"><p>User Portrait: created API to retrieve and create, store and delete the user's portrait. Also address leftover child relationships from the past and delete them properly.</p></li></ul></div><p>
		</p></li></ul></div><p>
	</p></li><li class="listitem"><p>Non-functional Changes
	</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><p>Improved automated regression test infrastructure and test coverage
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>All packages in the <code class="computeroutput">oacs-5-10</code> branch pass regression test</p></li><li class="listitem"><p>Web testing was separated from non-maintained tcltest and was built on the standard OpenACS infrastructure</p></li><li class="listitem"><p>Include web testing per default in standard regression testing</p></li><li class="listitem"><p>Introduced new test authentication authority, allowing to run many user administration tests outside the context of a "real authority": in cases where the real authority depends on external services to proof identity, (e.g. Kerberos), those tests would just fail.</p></li><li class="listitem"><p>Introduce the display of warnings in the UI of automated testing</p></li><li class="listitem"><p>Added test coverage information in the automated testing pages, using the new proc-coverage API and providing test coverage information for packages and system wide.</p></li><li class="listitem"><p>Increased overall coverage of public API</p></li><li class="listitem"><p>New tests checking various data-model properties and smells
			</p></li></ul></div><p>
		</p></li><li class="listitem"><p>Improved scalability:
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>
			</p><p>Provided lock-free implementation of <code class="computeroutput">ad_page_contract_filters</code> and <code class="computeroutput">ad_page_contract_filter_rules</code>. This change improves parallel processing of requests and is primarily interesting for sites with a few mio page views per days. These locks were among the most frequent nsv locks</p><p>
			</p></li><li class="listitem"><p>
			</p><p>Reduced locks on util_memoize_cache my more invariants values into per-thread caching (<code class="computeroutput">acs_lookup_magic_object</code>, <code class="computeroutput">ad_acs_version</code>, .... ) and by avoiding specialized calls, which can be realized by already optimized ones (<code class="computeroutput">apm_package_installed_p_not_cached ref-timezones</code> was most frequently used util_memoize_cache entry). These changes are necessary to avoid full still-stand on the unfortunate long-time locks on util_memoize_cache stemming from permission and user management with wild-card flush operations, which require to iterate over all cache entries (which might be on a busy server several hundred thousands)</p><p>
			</p></li><li class="listitem"><p>
			</p><p>Added new interface for cache partitioning to reduce lock latencies on high load websites</p><p>
			</p></li><li class="listitem"><p>
			</p><p>Added new interface for lock-free per-thread and per-request caching to avoid scattered ad-hoc implementations</p><p>
			</p></li><li class="listitem"><p>
			</p><p>Better reuse of DB handles (reduced expiring/reopen/etc.), faster access to handles</p><p>
			</p></li></ul></div><p>
		</p></li><li class="listitem"><p>Improved startup time:
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>When the package acs-automated-testing is disabled, startup time is reduced by avoiding loading of support functions and tests; the size of the blueprint is reduced</p></li><li class="listitem"><p>xowf: loading of at-jobs is significantly improved.</p></li></ul></div><p>
		</p></li><li class="listitem"><p>Security improvements:
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>Strengthened page contracts</p></li><li class="listitem"><p>CSP support for application packages</p></li><li class="listitem"><p>CSP fine tuning
			 </p></li></ul></div><p>
		</p></li><li class="listitem"><p>Better exception handling based on Tcl 8.6 exception handlers (<code class="computeroutput">try</code> and <code class="computeroutput">throw</code>, also available in Tcl 8.5)
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>Provided a new <code class="computeroutput">ad_try</code> implementation based on Tcl's <code class="computeroutput">try</code> replaces now the old <code class="computeroutput">ad_try</code>, <code class="computeroutput">with_catch</code> and <code class="computeroutput">with_finally</code>, which are marked as deprecated</p></li><li class="listitem"><p>The new <code class="computeroutput">ad_try</code> is in essence Tcl's <code class="computeroutput">try</code> but with predefined handling of <code class="computeroutput">ad_script_abort</code> and should be also used instead of <code class="computeroutput">catch</code>, when the OpenACS API is used (which might use script aborts)</p></li><li class="listitem"><p>All core packages use the new <code class="computeroutput">ad_try</code> instead of the deprecated versions.</p></li></ul></div><p>
		</p></li><li class="listitem"><p>Connection close reform:
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>NaviServer/AOLserver continue after connection closing commands to execute a script. This is in many situations not desired, especially, when for the page as well a .adp file exists, which will try to deliver this on the already closed connection. This can lead to errors in the error.log file, which are sometimes hard to analyze</p></li><li class="listitem"><p>Due to this cleanup, developers should use in most such cases cases <code class="computeroutput">ad_script_abort</code></p></li><li class="listitem"><p>Connection closing commands are e.g. <code class="computeroutput">ad_returnredirect</code>, <code class="computeroutput">ad_redirect_for_registration</code>, <code class="computeroutput">cr_write_content</code>, <code class="computeroutput">ad_page_contract_handle_datasource_error</code>, <code class="computeroutput">ad_return_string_as_file</code>, <code class="computeroutput">ad_return_complaint</code>, <code class="computeroutput">ad_return_error</code>, <code class="computeroutput">ad_return_forbidden</code>, <code class="computeroutput">ad_return_warning</code>, <code class="computeroutput">ad_return_exception_page</code>, <code class="computeroutput">ns_returnredirect</code>, <code class="computeroutput">ns_return</code>, <code class="computeroutput">ns_returnerror</code></p></li><li class="listitem"><p>The new version has made on most occasions explicit, when the script should abort.</p></li></ul></div><p>
		</p></li><li class="listitem"><p>API changes (new and extended API calls):
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>New API call <code class="computeroutput">category::get</code> to obtain category description for a category_id and locale</p></li><li class="listitem"><p>New utility <code class="computeroutput">ad_pad</code> emulating both lpad and rpad typically available in DBMSs</p></li><li class="listitem"><p>New proc lc_content_size_pretty, prettify data size given in bytes. It supports three different standards (SI base-10, IEC base-2 and the old JEDEC base-2), default is SI base-10.</p></li><li class="listitem"><p>New flag <code class="computeroutput">-export</code> for <code class="computeroutput">ad_form</code>: this flag uses <code class="computeroutput">export_vars</code> under the hood and supports all of this API's features (e.g. :multiple, :sign, :array). This addresses a long standing TODO</p></li><li class="listitem"><p><code class="computeroutput">util::pdfinfo</code>: simple poppler-utils wrapper to extract pdf information</p></li><li class="listitem"><p>util::http: leverage new ns_http features such as request file spooling. Native implementation will now be used only on NaviServer &gt;= 4.99.15.</p></li><li class="listitem"><p>Database API:
			</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p><code class="computeroutput">db_foreach</code>: queries executed inside of a db_foreach will not be issued using a different handle and will therefore be safe to use in a transaction</p></li><li class="listitem"><p><code class="computeroutput">db_list_of_lists</code>: new <code class="computeroutput">-with_headers</code> flag, which will make the first element of the returned list to be the column names as defined in the query</p></li></ul></div><p>
			</p></li><li class="listitem"><p>Groups API:
			</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Logics to delete a group type have now been included in the API</p></li><li class="listitem"><p>Allow to filter group members by member_state in the API</p></li></ul></div><p>
			</p></li></ul></div><p>
		</p></li><li class="listitem"><p>Deprecated commands:
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>Many deprecated API calls were included in the code (and sometimes still in use) sometimes more than 10 years after these calls have been deprecated. In case a site modification still uses deprecated code, the user is warned about this. The OpenACS 5.10 code base does not depend on deprecated code.</p></li><li class="listitem"><p>Move deprecated code into separate files</p></li><li class="listitem"><p>Made loading of deprecated code optional (can be controlled via parameter "WithDeprecatedCode" in section "ns_section ns/server/${server}/acs" of the config file. By default, deprecated procs are still loaded</p></li><li class="listitem"><p>When deprecated code is not loaded, the blueprint of the interpreter is smaller. The following number of lines of code can be omitted when loading without the deprecated procs:
			</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>acs-tcl: 3178</p></li><li class="listitem"><p>acs-templating: 450</p></li><li class="listitem"><p>xotcl-core http-client-procs: 830</p></li><li class="listitem"><p>acs-content-repository: 1717 (including .xql files)</p></li></ul></div><p>
			</p></li></ul></div><p>
		</p></li><li class="listitem"><p>Bugfix and Code Maintenance:
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>Made sure all party emails are stored as lowercase through the API</p></li><li class="listitem"><p>Fixed long standing regression in template::list: we were looping through the list "elements", rather than the "display_elements". This prevents specifying different sets of columns to be returned depending on the <code class="computeroutput">-formats</code> and <code class="computeroutput">-selected_format</code> options in template::list::create.</p></li><li class="listitem"><p>acs-content-repository: New HEIC and HEIF mimetypes</p></li><li class="listitem"><p>acs-mail-lite: handle <code class="computeroutput">to_addr</code> specified as "DisplayName &lt;email&gt;" without errors</p></li><li class="listitem"><p>Fixed invalidating of all existing user logins, (aka) "Logout from everywhere" feature, useful e.g. to make sure no device still holds a valid login when we change our password on a device</p></li><li class="listitem"><p>Don't lose the return URL when one tries to join a subsite before being logged in</p></li><li class="listitem"><p>Added <code class="computeroutput">doc(base_href) </code>and <code class="computeroutput">doc(base_target)</code> for setting &lt;base&gt; element via blank-baster (see issue #3435)</p></li><li class="listitem"><p>Groups:
			</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>When a new group is created, flush all the group::get_id caches with the same name so that the new group can be fetched correctly in case it replaces a previously deleted one</p></li><li class="listitem"><p>Cleanup message keys coming from groups in acs-translations when a group is deleted</p></li></ul></div><p>
			</p></li><li class="listitem"><p>acs-lang:
			</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p><code class="computeroutput">lang::util::convert_to_i18n</code>: do not always register a en_US translation, which would be always overridden. Instead, let <code class="computeroutput">lang::message::register</code> make sure that a en_US message exists and create one only as a fallback.</p></li><li class="listitem"><p><code class="computeroutput">lc_time_fmt</code>: leverage Tcl clock to address shortcomings such as handling of dates in Julian/Gregorian calendar and impossible dates such as 1999-02-29, implement missing formats, support previously undocumented formats explicitly</p></li></ul></div><p>
			</p></li><li class="listitem"><p>search: make sure objects in the search indexer queue still exist by the time they are swept by the indexer (e.g. items deleted before the indexer could sweep them)</p></li><li class="listitem"><p><code class="computeroutput">attribute::delete</code>: fix proc so it leverages stored procedure capability of dropping the database table as well</p></li><li class="listitem"><p><code class="computeroutput">util::http</code>: fix UTF-8 encoding issues for some cornercases</p></li><li class="listitem"><p>Localization: Complete Italian and Spanish localization for the whole .LRN set of packages (including themes). Message keys for new and previously localized packages have also been updated</p></li></ul></div><p>
		</p></li><li class="listitem"><p>General cleanup/maintenance
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>Improved handling of server implementation-specific code: server-specific code can be optionally loaded via specifying the server family in the filename. Provided <code class="computeroutput">*-procs-aolserver.tcl</code> and <code class="computeroutput">*-procs-naviserver.tcl</code> similar to *.postgresql.xql and *.oracle.xql where appropriate</p></li><li class="listitem"><p>Modernization of Tcl idioms.</p></li><li class="listitem"><p>Compliance of files, proc names, ... to the naming conventions.</p></li><li class="listitem"><p>White space cleanup, indentation changes.</p></li><li class="listitem"><p>Improvement of public API documentation</p></li><li class="listitem"><p>Adjustment of proc protection levels (public, private)</p></li><li class="listitem"><p>Adjustment of log severity</p></li><li class="listitem"><p>Cleanup of obsolete files</p></li><li class="listitem"><p>Replacement of handcrafted forms by ad_form</p></li><li class="listitem"><p>Typo fixing</p></li><li class="listitem"><p>Editor hints</p></li><li class="listitem"><p>Replacement of deprecated calls</p></li><li class="listitem"><p>Addition of missing contracts</p></li><li class="listitem"><p>...</p></li></ul></div><p>
		</p></li><li class="listitem"><p>SQL cleanup:
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>Cleanup of obsolete nonportable SQL constructs in a way Oracle and PostgreSQL code base divergency is reduced:
			</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>"nvl" -&gt; "coalesce"</p></li><li class="listitem"><p>"sysdate" / "now()" -&gt; standard "current_date" or "current_timestamp"</p></li><li class="listitem"><p>Use standard-compliant "dual" table where appropriate (required by Oracle, supported by PostgreSQL)</p></li><li class="listitem"><p>Use non-dialectal cast idioms when appropriate</p></li><li class="listitem"><p>Adopt CTE idioms in Oracle codebase as well (e.g. connect -&gt; with recursive)</p></li><li class="listitem"><p>... (reference Oracle version will be 11gr2 as is oldest version officially supported by Oracle (See <a class="ulink" href="http://www.oracle.com/us/support/library/lifetime-support-technology-069183.pdf" target="_top">here</a> and <a class="ulink" href="https://n4stack.io/oracle-11g-end-of-life/" target="_top">here</a>)</p></li></ul></div><p>
			</p></li><li class="listitem"><p>Reduced superfluous .xql queries
			</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>acs-subsite: delete 21 files with un-referenced .xql queries</p></li><li class="listitem"><p>acs-tcl: delete 4 files</p></li><li class="listitem"><p>news: 3 files</p></li><li class="listitem"><p>file-storage: 1 file</p></li><li class="listitem"><p>dotlrn: 9 files</p></li></ul></div><p>
			</p></li></ul></div><p>
		</p></li><li class="listitem"><p>New Packages:
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>cookie-consent: alerting users about the use of cookies on a website</p></li><li class="listitem"><p>boomerang: performance of your website from your end user’s point of view</p></li><li class="listitem"><p>xooauth: OAuth implementation, including LTI (Learning Tools Interoperability)</p></li><li class="listitem"><p>dotlrn-bootstrap3-theme: Bootstrap 3 theme for DotLRN</p></li><li class="listitem"><p>xowf-monaco-plugin: Integration of Monaco editor with for code exercise types in xowf</p></li><li class="listitem"><p>proctoring-support: utilities and user interfaces to implement proctoring of the user session, mainly intended in the context of distance education and online exams. The main proctoring feature relies only on web technologies and does not require any plugin or additional software. Optional support for the Safe Exam Browser has also been introduced. The package is currently at the core of WU Online Exam infrastructure and is integrated in the inclass exam implementation for xowf</p></li></ul></div><p>
		</p></li></ul></div><p>
	</p></li><li class="listitem"><p>Require Tcl 8.6, XOTcl 2.1, PostgreSQL 9.6 (PostgreSQL 9.5 EOL: <a class="ulink" href="https://www.postgresql.org/support/versioning/" target="_top">February 2021</a>), tdom 0.9</p></li></ul></div><p> Altogether, OpenACS 5.10.0 differs from OpenACS 5.9.1 by the
following statistics
</p><pre class="programlisting">
 3445 files changed, 215464 insertions(+), 193642 deletions(-) 
</pre><p>
contributed by 7 committers (Antonio Pisano, Gustaf Neumann, Günter Ernst, Hector Romojaro, Michael Aram, Stefan Sobernig, Thomas Renner) and additional 13 patch/bugfix providers (Felix Mödritscher, Florian Mosböck, Frank Bergmann, Franz Penz, Hanifa Hasan, Keith Paskett, Markus Moser, Maurizio Martignano, Monika Andergassen, Nathan Coulter, Rainer Bachleitner, Stephan Adelsberger, Tony Kirkham).

All packages of
the release were tested with PostgreSQL 13.* and Tcl 8.6.*.
</p><p>
  For more details, consult the
  <a class="ulink" href="http://openacs.org/changelogs/ChangeLog-5.10.0" target="_top">raw ChangeLog</a>.
</p></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-9-1"></a>Release 5.9.1</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
	The release of OpenACS 5.9.1 contains the 88 packages of the oacs-5-9
	branch.  These packages include the OpenACS core packages, the major
	application packages (e.g. most the ones used on OpenACS.org), and
	DotLRN 2.9.1. 
      </p></li><li class="listitem"><p>
	Summary of changes:
	</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><p>
	    Refactoring of rich-text editor integration
	    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>
		Driving force: Debian packaging (e.g. js minified code is not
		allowed)
	      </p></li><li class="listitem"><p>
		Moved out code from acs-templating, provided interfaces to add
		many different richtext editors as separate packages
	      </p></li><li class="listitem"><p>
		New OpenACS packages:
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>richtext-xinha</p></li><li class="listitem"><p>richtext-tinymce</p></li><li class="listitem"><p>
		    richtext-ckeditor4 (has ability to choose between CDN and local
		    installation via web interface)
		  </p></li></ul></div><p>
	      </p></li></ul></div><p>
	  </p></li><li class="listitem"><p>
	    Improving admin interface
	    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>New theme manager:
	      </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Goals:
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><p>
		    Make it easier to keep track of themes with local
		    modifications
		  </p></li><li class="listitem"><p>
		    Make it easier to create local modification a new themes and to
		    update these
		  </p></li><li class="listitem"><p>
		    Show differences between default theme parameter (in DB) and
		    actual settings (in subsite parameters)
		  </p></li><li class="listitem"><p>
		    Allow to delete unused themes
		  </p></li><li class="listitem"><p>
		    Give site admin hints, which theme is used at which
		    subsite
		  </p></li><li class="listitem"><p>Ease theme switching</p></li></ul></div><p>
		</p></li><li class="listitem"><p>
		  Added a subsite::theme_changed callback to be able to handle
		  theme changes in custom themes (was also necessary for proper
		  integration with DotLRN theming)
		</p></li><li class="listitem"><p>
		  Added support for these features under subsite admin
		  (/admin/)
		</p></li><li class="listitem"><p>
		  Improved support for themed templates via
		  [template::themed_template]
		</p></li></ul></div><p>
	      </p></li><li class="listitem"><p>
		Improved (broken) interface to define/manage groups over web
		interface
	      </p></li><li class="listitem"><p>
		Allow to send as well mail, when membership was rejected
	      </p></li><li class="listitem"><p>
		New functions [membership_rel::get_user_id],
		[membership_rel::get] and [membership_rel::get_group_id] to avoid
		code duplication
	      </p></li><li class="listitem"><p>
		Added support to let user include %forgotten_password_url%
		in self-registration emails (e.g. in message key
		acs-subsite.email_body_Registration_password)
	    </p></li><li class="listitem"><p>
	      Improved subsite/www/members
	      </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Make it possible to manage members of arbitrary groups</p></li><li class="listitem"><p>Improved performance for large groups</p></li><li class="listitem"><p>Improved configurability: when ShowMembersListTo is set to
		"3", show list to members only, when this is not the
		whole subsite</p></li></ul></div><p>
	    </p></li><li class="listitem"><p>
	      Improved user interface for /admin/applications for large number of
	      applications
	    </p></li><li class="listitem"><p>Various fixes for sitewide-admin pages (under /acs-admin)</p></li><li class="listitem"><p>
	      Update blueprint in "install from
	      repository" (currently just working in NaviServer)
	    </p></li></ul></div><p>
	  </p></li><li class="listitem"><p>SQL
	  </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>
	      Further cleanup of .xql files (like what as done for
	      acs-subsite in OpenACS 5.9.0):
	      </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		  36 files deleted
		</p></li><li class="listitem"><p>
		  Removed more than 100 obsolete named queries
		</p></li><li class="listitem"><p>
		  Stripped misleading SQL statements
		</p></li></ul></div><p>
	    </p></li><li class="listitem"><p>
	      Marked redundant / uncalled SQL functions as deprecated
	    </p></li><li class="listitem"><p>
	      Replaced usages of obsolete view
	      "all_object_party_privilege_map" by
	      "acs_object_party_privilege_map"
	    </p></li><li class="listitem"><p>
	      Removed type discrepancy introduced in 2002:
	      </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		  acs_object_types.object_type has type varchar(1000), while
		</p></li><li class="listitem"><p>
		  acs_object_types.supertype has type varchar(100)
		</p></li><li class="listitem"><p>
		  ... several more data types are involved, using
		  acs_object_types.object_type as foreign key
		</p></li></ul></div><p>
	    </p></li><li class="listitem"><p>
	      Simplified core SQL functions by using defaults:
	      </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		  Number of functions reduced by a factor of 2 compared to OpenACS
		  5.9.0 (while providing compatibility for clients using old
		  versions),
		</p></li><li class="listitem"><p>
		  Reduced code redundancy
		</p></li><li class="listitem"><p>
		  Affected functions:
		  </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><p>Reduced content_item__new from 12 versions to 6,
		    </p></li><li class="listitem"><p>Reduce content_revision__new from 7 to 4
		    </p></li><li class="listitem"><p>
		      Similar in image__new, image__new_revision, content_item__copy,
		      content_item__get_title, content_item__move
		    </p></li></ul></div><p>
		</p></li><li class="listitem"><p>
		  PostgreSQL 9.5 supports named parameter in the same syntax as in Oracle.
		  Further reduction of variants will be possible, once OpenACS
		  requires at least PostgreSQL 9.5
		</p></li></ul></div><p>
	    </p></li><li class="listitem"><p>
	      Reduced usage of deprecated versions of SQL functions (mostly
	      content repository calls)
	    </p></li><li class="listitem"><p>
	      Reduced generation of dead tuples by combining multiple DML
	      statements to one (reduces costs of checkpoint cleanups in
	      PostgreSQL)
	    </p></li><li class="listitem"><p>
	      Permission queries:
	      </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		  Improved performance
		</p></li><li class="listitem"><p>
		  Support PACKAGE.FUNCTION notation for PostgreSQL to
		  allow calls permission queries exactly 
		  the same way as in Oracle (e.g. "acs_permission.permission_p()").
		  This helps to reduce the number of postgres specific .xql
		  files.
		</p></li></ul></div><p>
	    </p></li><li class="listitem"><p>
	      Modernize SQL:
	      </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		  Use real Boolean types instead of character(1)
		  (done for new-portal, forums, faq, attachments, categories, dotlrn,
		  dotlrn-forums, evaluation)
		</p></li><li class="listitem"><p>
		  Use real enumeration types rather than check constraints (done
		  for storage_type text/file/lob)
		</p></li></ul></div><p>
	    </p></li></ul></div><p>
	  </p></li><li class="listitem"><p>
	    CR hygienics (reduce cr bloat)
	    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>
		Provided means to avoid insert/update/delete operations in the
		search queue:</p><p>OpenACS adds for every new revision often multiple
		entries to the search_queue, without providing any means to prevent
		this. This requires for busy sites very short intervals between
		queue sweeps (otherwise too many entries pile up). Another
		consequence is that this behavior keeps the PostgreSQL
		auto-vacuum daemons permanently active. Many of these operations
		are useless in cases where the content repository is used for
		content that should not be provided via search. The changed
		behavior should honors a publish-date set to the future, since it
		will not add any content with future publish dates to the
		search-queue.</p></li><li class="listitem"><p>
		Reduced number of insert cr_child_rels operations, just when
		needed:
	      </p><p>cr_child_rels provide only little benefit (allow one to use
	      roles in a child-rel), but the common operation is a well available
	      in cr_items via the parent_id. cr_child_rels do not help for
	      recursive queries either. One option would be to add an additional
	      argument for content_item__new to omit child-rel creation (default
	      is old behavior) and adapt the other cases.
	      </p></li></ul></div><p>
	  </p></li><li class="listitem"><p>
	    Security improvements
	    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>
		Added support against <a class="ulink" href="/xowiki/CSRF" target="_top">CSRF</a> (cross site request
		forgery)
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		    OpenACS maintains a per-request CSRF token that ensures
		    that form replies are coming just from sites that received the
		    form
		  </p></li><li class="listitem"><p>
		    CSRF support is optional for packages where CSRF is less
		    dangerous, and such requests are wanted (e.g. search and API-browser)
		  </p></li></ul></div><p>
	      </p></li><li class="listitem"><p>
		Added Support for W3C "Upgrade-Insecure-Headers" (see
		https://www.w3.org/TR/upgrade-insecure-requests/):
		</p><p>For standard
		compliant upgrade for requests from HTTP to HTTPS
	      </p></li><li class="listitem"><p>
		Added support for W3C "Subresource Integrity" (SRI;
		see https://www.w3.org/TR/SRI/)
	      </p></li><li class="listitem"><p>
		Added support for W3C "Content Security Policy"
		(<a class="ulink" href="/xowiki/CSP" target="_top">CSP</a>; see https://www.w3.org/TR/CSP/)
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		    Removed "javascript:*" links (all such URLs are removed
		    from the 90 packages in oacs-5-9, excluding js libraries
		    (ajaxhelper) and richtext code)
		  </p></li><li class="listitem"><p>
		    Removed "onclick", "onfocus",
		    "onblur", "onchange" handlers from all
		    .adp and .tcl files in the 90 packages in oacs-5-9
		    (excluding js libraries (ajaxhelper) and richtext code)
		  </p></li><li class="listitem"><p>
		    Added optional nonces to all &lt;script&gt; elements with
		    literal JavaScript content
		  </p></li></ul></div><p>
	      </p></li><li class="listitem"><p>
		Removed "generic downloader",
		which allowed to download arbitrary content items, when item_id was
		known (bug-fix)
	      </p></li><li class="listitem"><p>
		Improved protection against XSS and SQL-injection (strengthen
		page contracts, add validators, added page_contract_filter
		"localurl", improve HTML escaping, and
		URI encoding)
	      </p></li><li class="listitem"><p>
		Fixed for potential traversal attack
		(acs-api-documentation-procs)
	      </p></li></ul></div><p>
	  </p></li><li class="listitem"><p>
	    Improvements for "host-node mapped" subsites
	    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>
		Fixed links from host-node mapped subsite pages to
		swa-functions (must be always on main subsite)
	      </p></li><li class="listitem"><p>
		Made "util_current_directory"
		aware of host-node-mapped subsites
	      </p></li><li class="listitem"><p>
		Added ability to pass
		"-cookie_domain" to make it possible
		to use the same cookie for different domains
	      </p></li><li class="listitem"><p>
		Fixed result of affected commands
		"util_current_location",
		"ad_return_url",
		"ad_get_login_url" and
		"ad_get_logout_url" for HTTP and
		HTTPS, when UseHostnameDomainforReg is 0 or 1.
	      </p></li><li class="listitem"><p>
		Improved UI for host-node maps when a large number of site
		nodes exists
	      </p></li></ul></div><p>
	  </p></li><li class="listitem"><p>Reform of acs-rels
	  </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>
	      Made acs-rels configurable to give the developer the option to
	      specify, whether these are composable or not (default fully
	      backward compatible). This is required to control transitivity in
	      rel-segments
	    </p></li><li class="listitem"><p>
	      The code changes are based on a patch provided
	      by Michael Steigmann. For details, see:
	      </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		  <a class="ulink" href="http://openacs.org/forums/message-view?message_id=4031049" target="_top">http://openacs.org/forums/message-view?message_id=4031049</a>
		</p></li><li class="listitem"><p>
		  <a class="ulink" href="http://openacs.org/forums/message-view?message_id=5330734" target="_top">http://openacs.org/forums/message-view?message_id=5330734</a>
		</p></li></ul></div><p>
	    </p></li></ul></div><p>
	  </p></li><li class="listitem"><p>
	    Improved status code handlers for AJAX scenarios
	    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>
		Don't report data source errors with status code 200 (use
		422 instead)
	      </p></li><li class="listitem"><p>
		Let "permission::require_permission" return forbidden (403) in
		AJAX calls (determined via [ad_conn ajaxp])
	      </p></li></ul></div><p>
	  </p></li><li class="listitem"><p>
	    Improved Internationalization
	    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>
		Extended language catalogs for
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		    Russian (thanks to v v)
		  </p></li><li class="listitem"><p>
		    Italian (thanks to Antonio Pisano)
		  </p></li><li class="listitem"><p>
		    Spanish (thanks to Hector Romojaro)
		  </p></li><li class="listitem"><p>
		    German (thanks to Markus Moser)
		  </p></li></ul></div><p>
	      </p></li><li class="listitem"><p>
		Added (missing) message keys
	      </p></li><li class="listitem"><p>
		Improved wording of entries
	      </p></li><li class="listitem"><p>
		Added message keys for member_state changes, provide API via
		group::get_member_state_pretty
	      </p></li></ul></div><p>
	  </p></li><li class="listitem"><p>
	    Improved online documentation (/doc)
	    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>Fixed many broken links
	      </p></li><li class="listitem"><p>Removed fully obsolete sections
	      </p></li><li class="listitem"><p>Improved markup (modernize HTML)
	      </p></li><li class="listitem"><p>Updated various sections
	      </p></li></ul></div><p>
	  </p></li><li class="listitem"><p>
	    Misc code improvements:
	    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>
		18 issues from the OpenACS-bug-tracker fixed
	      </p></li><li class="listitem"><p>
		Made code more robust against invalid/incorrect input
		(page_contracts, validators, values obtained from header fields
		such as Accept-Language)
	      </p></li><li class="listitem"><p>
		Fixed quoting of message keys on many places
	      </p></li><li class="listitem"><p>
		Improved exception handling (often, a
		"catch" swallows one too much, e.g. 
		script_aborts), introducing
		"ad_exception".
	      </p></li><li class="listitem"><p>
		Generalized handling of leading zeros:
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		    Fixed cases where leading zeros could lead to unwanted octal
		    interpretations
		  </p></li><li class="listitem"><p>
		    Switch to use of "
		    util::trim_leading_zeros" instead of
		    "template::util::leadingTrim",
		    "dt_trim_leading_zeros" and
		    "template::util::leadingTrim",
		    marked the latter as deprecated
		  </p></li></ul></div><p>
	      </p></li><li class="listitem"><p>
	      URL encoding
	      </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		  "ad_urlencode_folder_path": new
		  function to perform an urlencode operation on the segments of the
		  provided folder path
		</p></li><li class="listitem"><p>
		  "export_vars": encode path always
		  correctly, except -no_base_encode is specified
		</p></li><li class="listitem"><p>
		  Fixed encoding of the URL path in
		  "ad_returnredirect"
		</p></li></ul></div><p>
	    </p></li><li class="listitem"><p>
	      Improvements for "ad_conn":
	      </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Added [ad_conn behind_proxy_p] to check, whether the request is
		coming from behind a proxy server
		</p></li><li class="listitem"><p>Added [ad_conn behind_secure_proxy_p] to check, whether the
		request is coming from behind a secure proxy server
		</p></li><li class="listitem"><p>Added [ad_conn ajax_p] to check, whether the request is an AJAX
		requests (assumption: AJAX request sets header-field
		Requested-With: XMLHttpRequest")
		</p></li><li class="listitem"><p>Added [ad_conn vhost_url] to obtain the url of host-node-mapped
		subsites
		</p></li></ul></div><p>
	    </p></li><li class="listitem"><p>Added various missing upgrade scripts (missing since many years)
	    of changes that were implemented for new installs to reduce
	    differences between "new"-and
	    "old" (upgraded) installations
	    </p></li><li class="listitem"><p>
	      Templating
	      </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Get rid of various pesky "MISSING FORMWIDGET:
		...formbutton:ok" messages
		</p></li><li class="listitem"><p>Improved support for JavaScript event handlers in
		template::head
		</p></li><li class="listitem"><p>New functions
		"template::add_event_listener" and
		"template::add_confirm_handler"
		</p></li><li class="listitem"><p>Fix handling, when "page_size_variable_p" is set (was
		broken since ages)
		</p></li></ul></div><p>
	    </p></li><li class="listitem"><p>
	      Improved location and URL handling:
	      </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		  Refactored and commented
		  "util_current_location" to address
		  security issues, handle IPv6 addresses, IP literal notation,
		  multiple drivers, "
		</p></li><li class="listitem"><p>
		  Improved "security::get_secure_location"
		  (align with documentation)
		</p></li><li class="listitem"><p>
		  New functions:
		  </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><p>
		      "util::configured_location"
		    </p></li><li class="listitem"><p>
		      "util::join_location",
		      "util::split_location"
		    </p></li></ul></div><p>
		  for working on HTTP locations to reduce scattered regexps handling
		  URL components
		</p></li><li class="listitem"><p>Improved IPv6 support
		</p></li><li class="listitem"><p>Use native "ns_parseurl" when
		available, provide backward compatible version for AOLserver
		</p></li></ul></div><p>
	    </p></li><li class="listitem"><p>
	      MIME types:
	      </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Added more Open XML formats for MS-Office to allowed content
		types
		</p></li><li class="listitem"><p>Modernized entries to IANA recommendations
		</p></li><li class="listitem"><p>New function "cr_check_mime_type"
		centralizing the retrieval of the mime_type from uploaded
		content
		</p></li></ul></div><p>
	    </p></li><li class="listitem"><p>Finalized cleanup of permissions (started in OpenACS 5.9.0):
	    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Get rid of "acs_object_context_index
	      " (and therefore on "acs_object_party_privilege_map
	      " as well) on PostgreSQL.
	    </p><p> Reasons:
	    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><p>huge table,</p></li><li class="listitem"><p>expensive maintenance, used only in a few places,</p></li></ul></div><p>
	      </p></li></ul></div><p>
	    </p></li><li class="listitem"><p>
	      Misc new functions:
	      </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p> "lang::util::message_key_regexp":
		factor out scattered regexp for detecting message keys
		</p></li><li class="listitem"><p> "ns_md5" and
		"ns_parseurl": improve compatibility between
		AOLserver and NaviServer </p></li><li class="listitem"><p> "ad_dom_sanitize_html": allow one to
		specify different sets of tags, attributes and protocols and
		"ad_dom_fix_html", which is a light weight tidy
		variant.  </p></li></ul></div><p>
	    </p></li><li class="listitem"><p>
	      Improved HTML rendering (acs-api-browser), provide width and
	      height to speed up rendering
	    </p></li><li class="listitem"><p>
	      Improved ADP files (e.g. missing doc(title))
	    </p></li><li class="listitem"><p>
	      Added usage of
	      "ad_include_contract" on more
	      occasions
	    </p></li><li class="listitem"><p>
	      Modernize Tcl and HTML coding
	    </p></li><li class="listitem"><p>
	      Reduced dependency on external programs (use Tcl functions
	      instead)
	    </p></li><li class="listitem"><p>
	      Improved robustness of "file
	      delete" operations all over the code
	    </p></li><li class="listitem"><p>
	      Improved documentation, fix demo pages
	    </p></li><li class="listitem"><p>Aligned usages of log notification levels (distinction between
	    "error",
	    "warning" and
	    "notice") with coding-standards
	    </p></li><li class="listitem"><p>Cleaned up deprecated calls:
	    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		Removed usage of deprecated API functions (e.g.
		"cc_lookup_email_user",
		"cc_email_from_party",
		"util_unlist", ...)
	      </p></li><li class="listitem"><p>Moved more deprecated procs to acs-outdated
	      </p></li><li class="listitem"><p>Marked remaining (and unused)
	      "cc_*" functions as well as
	      deprecated.
	      </p></li></ul></div><p>
	    
	    </p></li><li class="listitem"><p>
	      Improved Oracle and windows support
	    </p></li><li class="listitem"><p>
	      Fixed common spelling errors and standardize spelling of product
	      names all over the code (comments, documentation, ...)
	    </p></li><li class="listitem"><p>
	      Many more small bug fixes
	    </p></li></ul></div><p>
	</p></li><li class="listitem"><p>Packages:
	</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>
	    New Package Parameters
	    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		acs-kernel:
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><p>
		    MaxUrlLength: remove hard-coded constant in request processor
		    for max accepted url paths
		  </p></li><li class="listitem"><p>
		    SecureSessionCookie: Let site admin determine, whether or not to
		    use secured session cookies (useful, when not all requests are over
		    HTTPS)
		  </p></li><li class="listitem"><p>
		    CSPEnabledP: activate/deactivate CSP
		  </p></li></ul></div><p>
	      </p></li><li class="listitem"><p>
		acs-kernel (recommended to be set via config file in section
		"ns/server/${server}/&gt;acs"
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><p>
		    NsShutdownWithNonZeroExitCode: tell NaviServer to return with a
		    nonzero return code to cause restart (important under windows)
		  </p></li><li class="listitem"><p>
		    LogIncludeUserId: include user_id in access log
		  </p></li></ul></div><p>
	      </p></li><li class="listitem"><p>
		acs-api-browser:
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><p>
		    ValidateCSRFP: make checking of CSRF optional (default 1)
		  </p></li></ul></div><p>
	      </p></li><li class="listitem"><p>
		acs-content-repository:
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><p>
		    AllowMimeTypeCreationP: Decides whether we allow unknown mime
		    types to be automatically registered (default: 0}
		  </p></li></ul></div><p>
	      </p></li><li class="listitem"><p>
		news-portlet:
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><p>
		    display_item_lead_p: Should we display news leads in the
		    portlet? (default 0)
		  </p></li></ul></div><p>
	      </p></li><li class="listitem"><p>
		search:
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><p>
		    ValidateCSRFP: make checking of CSRF optional (default 1)
		  </p></li></ul></div><p>
	      </p></li><li class="listitem"><p>
		xotcl-request-monitor:
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><p>do_track_activity: turn activity
		  monitoring on or off (default 0)
		  </p></li></ul></div><p>
	      </p></li></ul></div><p>
	  </p></li></ul></div><p>
	
	</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>
	    New OpenACS packages:
	    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		richtext-xinha
	      </p></li><li class="listitem"><p>
		richtext-tinymce
	      </p></li><li class="listitem"><p>
		richtext-ckeditor4 (has ability to choose between CDN and local
		installation via GUI)
	      </p></li><li class="listitem"><p>
		openacs-bootstrap3-theme (as used on openacs.org)
	      </p></li><li class="listitem"><p>
		dotlrn-bootstrap3-theme
	      </p></li></ul></div><p>
	  </p></li></ul></div><p>
	
	</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>
	    xotcl-core:
	    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		Improved XOTcl 2.0 and NX support (e.g. api-browser)
	      </p></li><li class="listitem"><p>
		Added "-debug",
		"-deprecated" to ad_* defined
		methods (such as e.g.
		"ad_instproc")
	      </p></li><li class="listitem"><p>
		Make use of explicit "create"
		statements when creating XOTcl/NX objects (makes it easier to grab
		intentions and to detect typos)
	      </p></li><li class="listitem"><p>
		Added parameter to
		"get_instance_from_db" to specify,
		whether the loaded objects should be initialized
	      </p></li><li class="listitem"><p>
		Added support for PostgreSQL prepared statements of SQL
		interface in ::xo::dc (nsdb driver)
	      </p></li></ul></div><p>
	  </p></li><li class="listitem"><p>
	    xowiki:
	    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		Named all web-callable methods www-NAME (to make it clear, what
		is called, what has to be checked especially carefully)
	      </p></li><li class="listitem"><p>
		Moved templates from www into xowiki/resources to avoid naming
		conflicts
	      </p></li><li class="listitem"><p>
		Improved ckeditor support
	      </p></li><li class="listitem"><p>
		Added usage of prepared statements for common queries
	      </p></li><li class="listitem"><p>
		Improved error handling
	      </p></li><li class="listitem"><p>
		Better value checking for query parameter, error reporting via
		ad_return_complaint
	      </p></li><li class="listitem"><p>
		Added option "-path_encode" to methods
		"pretty_link" and "folder_path" to allow one to
		control, whether the result should be encoded or not (default
		true)
	      </p></li><li class="listitem"><p>
		Form fields:
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><p>
		    Improved repeatable form fields (esp. composite cases),
		    don't require preallocation (can be costly in composite
		    cases)
		  </p></li><li class="listitem"><p>
		    Added signing of form-fields
		  </p></li><li class="listitem"><p>
		    Added HTML5 attributes such as
		    "multiple" (for
		    "file") or
		    "autocomplete"
		  </p></li><li class="listitem"><p>
		    Fixed generation of "orderby"
		    attribute based on form-field names
		  </p></li><li class="listitem"><p>
		    richtext: allow one to specify
		    "extraAllowedContent" via
		    options
		  </p></li><li class="listitem"><p>
		    Improved layout of horizontal check boxes
		  </p></li></ul></div><p>
	      </p></li><li class="listitem"><p>
		Menu bar:
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><p>
		    Added dropzone (requires bootstrap): drag and drop file upload
		  </p></li><li class="listitem"><p>
		    Added mode toggle (requires bootstrap)
		  </p></li><li class="listitem"><p>
		    Extended default policies for handling e.g. dropzone
		    (file-upload method)
		  </p></li><li class="listitem"><p>
		    Distinguish between "startpage"
		    (menu.Package.Startpage) and "table of contents"
		    (menu.Package.Toc)
		  </p></li></ul></div><p>
	      </p></li><li class="listitem"><p>
		Notifications:
		</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><p>
		    Added support for better tailorable notifications: introduced
		    method "notification_render"
		    (similar to "search_render")
		  </p></li><li class="listitem"><p>
		    Added support for tailorable subject lines (method
		    "notification_subject")
		  </p></li></ul></div><p>
	      </p></li><li class="listitem"><p>
		Improved bootstrap support, use
		"bootstrap" as
		PreferredCSSToolkit
	      </p></li><li class="listitem"><p>
		Switched to ckeditor4 as PreferredRichtextEditor
	      </p></li><li class="listitem"><p>
		Improved handling of script-abort from within the payload of
		::xowiki::Object payloads
	      </p></li><li class="listitem"><p>
		Added parameter to
		"get_all_children" to specify,
		whether the child objects should be initialized
	      </p></li></ul></div><p>
	  </p></li><li class="listitem"><p>
	    xowf:
	    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		Added property "payload" to
		"WorkflowConstruct" in order to simplify customized
		workflow "allocate" actions
	      </p></li><li class="listitem"><p>
		Internationalized more menu buttons
	      </p></li></ul></div><p>
	  </p></li><li class="listitem"><p>
	    xotcl-request-monitor
	    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		Added class "BanUser" (use. e.g. ip
		address to disallow requests from a user via request monitor)
	      </p></li><li class="listitem"><p>
		Added support for optional user tracking in database
	      </p></li><li class="listitem"><p>
		Added support for monitoring response-time for certain URLs via
		munin
	      </p></li><li class="listitem"><p>
		Increased usage of XOTcl 2.0 variable resolver (potentially
		speed improvement 4x)
	      </p></li><li class="listitem"><p>
		Performed some refactoring of response-time handling to allow
		site-admin to make e.g. use of NaviServer's dynamic connection
		pool management (not included in CVS)
	      </p></li><li class="listitem"><p>
		Added support for partial times in long-calls.tcl to ease
		interpretation of unexpected slow calls
	      </p></li><li class="listitem"><p>
		last100.tcl: Don't report hrefs to URLs, except to SWAs
	      </p></li></ul></div><p>
	  </p></li><li class="listitem"><p>
	    chat:
	    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		Introduced new options to set chat rooms so login and/or logout
		message are not issued every time a user enters/exits a chat-room
		(important for chats with huge number of participants)
	      </p></li><li class="listitem"><p>
		Parameterized viewing of chat-logs
	      </p></li><li class="listitem"><p>
		Fixed cases of over-/under-quoting
	      </p></li><li class="listitem"><p>
		Fixed JavaScript for IE, where innerHTML can cause
		problems
	      </p></li></ul></div><p>
	  </p></li><li class="listitem"><p>
	    file-storage:
	    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		Don't show action keys, when user has no
		permissions
	      </p></li><li class="listitem"><p>
		Added support for copying of same-named files into a folder
		(adding suffix)
	      </p></li><li class="listitem"><p>
		Fixed old bugs in connection with
		"views" package
	      </p></li></ul></div><p>
	  </p></li></ul></div><p>
	</p></li></ul></div><p>
    </p></li></ul></div><p> Altogether, OpenACS 5.9.1 differs from OpenACS 5.9.1 by the
    following statistics
    </p><pre class="programlisting">
       3548 files changed, 113292 insertions(+), 90507 deletions(-)
    </pre><p>
    contributed by 5 committers (Michael Aram, Gustaf Neumann, Antonio
    Pisano, Hector Romojaro, Thomas Renner) and 8 patch/bugfix providers
    (Frank Bergmann, Günter Ernst, Brian Fenton, Felix Mödritscher, Marcus
    Moser, Franz Penz, Stefan Sobernig, Michael Steigman). All packages of
    the release were tested with PostgreSQL 9.6.* and Tcl 8.5.*.
  </p><p>
    For more details, consult the
    <a class="ulink" href="" target="_top">raw ChangeLog</a>.
  </p></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-9-0"></a>Release 5.9.0</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
	The release of OpenACS 5.9.0 contains the 78 packages of the oacs-5-9 branch.
	These packages include the OpenACS core packages, the major
	application packages (e.g. most the ones used on OpenACS.org), and
	DotLRN 2.9.0.
      </p></li><li class="listitem"><p>
	Summary of changes:
	</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><p>SQL:
	  </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>
	      Improved performance of acs-object deletion.
	    </p></li><li class="listitem"><p>
	      Replaced many manual referential integrity calls by
	      built-in handing in PostgreSQL.
	    </p></li><li class="listitem"><p>
	      Removed various manual bookkeeping and deletion operations
	      in the content repository by built-in handing in PostgreSQL.
	    </p></li><li class="listitem"><p>
	      Removed tree_sortkey on acs-objects to reduce its size and
	      to speedup operations, where the context-id is changed
	      (could take on large installation several minutes in
	      earlier versions)
	    </p></li><li class="listitem"><p>
	      Removed several uncalled / redundant SQL statements and functions.
	    </p></li><li class="listitem"><p> Cleanup of .xql files in acs-subsite:
	    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p> Some cleanup of .xql files: removed
	      misleading sql-statements from db_* calls, which were
	      ignored due .xql files
	      </p></li><li class="listitem"><p> Removed bug where same query-name was
	      used in different branches of an if-statement for
	      different SQL statements, but the query-name lead to the
	      wrong result.
	      </p></li><li class="listitem"><p> Removed multiple entries of same query
	      name from .xql files (e.g. the entry
	      "package_create_attribute_list.select_type_info" was
	      7 (!) times in a single .xql file)
	      </p></li></ul></div><p>	    

	    </p></li></ul></div><p>	    
	  </p></li><li class="listitem"><p>Web Interface:
	  </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>
	      Improve Performance of WebSites created with OpenACS:
	      e.g. move core.js to a body requests, provide kernel
	      parameter ResourcesExpireInterval to specify expiration
	      times for resources.
	    </p></li><li class="listitem"><p>
	      Much better protection against XSS attacks.
	    </p></li><li class="listitem"><p>
	      Improved HTML validity (especially for admin pages)
	    </p></li><li class="listitem"><p>
	      Improved admin interface:
	      </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		  Placed all installation options to a single page.
		</p></li><li class="listitem"><p>
		  Added pagination to /admin/applications (was unusable
		  for large sites)
		</p></li><li class="listitem"><p>
		  New admin pages for subsites linked from
		  site-wide-admin package (/acs-admin).
		</p></li><li class="listitem"><p>
		  Added explanatory text to several admin pages.
		</p></li></ul></div><p>
	    </p></li><li class="listitem"><p> Add lightweight support for ckeditor4 for
 	    templating::richtext widget (configurable via package
 	    parameter "RichTextEditor" of acs-templating. ckeditor4
 	    supports mobile devices (such as iPad, ...)
 	    </p></li></ul></div><p>
	  </p></li><li class="listitem"><p>Templating:
	  </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>
	      Improved theme-ability: Moved more information into theme
	      packages in order to create responsive designs, reduce
	      hard-coding of paths, HTML etc.
	    </p></li><li class="listitem"><p>
	      Improved include-handling: All includes are now
	      theme-able, interfaces of includes can be defined with
	      "ad_include_contract" (similar to ad_page_contract).
	    </p></li><li class="listitem"><p>
	      Improved them-ability for display_templates. One can now
	      provide a display_template_name (similar to the SQL statement name) to refer to display templates. This
	      enables reusability and is theme-able.
	    </p></li><li class="listitem"><p> Dimensional slider reform (ad_dimensional):
 	    Removed hard-coded table layout from dimensional slider. Add
 	    backwards compatible templates Move hard-coded styles into
 	    theme styling </p></li><li class="listitem"><p>
	      Notification chunks are now theme-able as well (using ad_include_contract)
	    </p></li><li class="listitem"><p>
	      Complete template variable suffixes (adding noi18n,
	      addressing bug #2692, full list is now: noquote, noi18n, literal)
	    </p></li><li class="listitem"><p>
	      Added timeout and configurable secrets for signed url
	      parameters to export_vars/page_contracts.
	      This can be used to secure sensitive operations
	      such as granting permissions since a link can be set to
	      timeout after e.g. 60 seconds; after that, the link is
	      invalid. A secret (password) can be set in section
	      ns/server/$server/acs parameter "parametersecret".
	      
	      For example, one can use now "user_id:sign(max_age=60)" in
	      export_vars to let the exported variable expire after 60 seconds.
	    </p></li></ul></div><p>
	  </p></li><li class="listitem"><p>Misc:
	  </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>
	      Added ability to show ns_log statements of current request
	      to developer support output when developer support is
	      activated (controlled via package parameter "TclTraceLogServerities"
	      in the acs-tcl package parameters)
	    </p></li><li class="listitem"><p>
	      Added ability to save data sent by
	      ns_return in files on the filesystem. This can be used to
	      validate HTML content also for password protected pages
	      (controlled via package parameter "TclTraceSaveNsReturn" in
	      the acs-tcl package parameters)
	    </p></li><li class="listitem"><p>
	      New API function "ad_log" having the same interface as
	      ns_log, but which logs the calling information (like URL
	      and call-stack) to ease tracking of errors.
	    </p></li><li class="listitem"><p> Use per-thread caching to reduce number of
	    mutex lock operations and lock contention on various caches
	    (util-memoize, xo_site_nodes, xotcl_object_types) and nsvs
	    (e.g. ds_properties) </p></li><li class="listitem"><p>
	      Improved templating of OpenACS core documentation
	    </p></li><li class="listitem"><p>
	      Improved Russian Internationalization
	    </p></li><li class="listitem"><p>
	      Make pretty-names of acs-core packages more consistent
	    </p></li><li class="listitem"><p>
	      Mark unused functions of acs-tcl/tcl/table-display-procs.tcl as deprecated
	    </p></li><li class="listitem"><p>
	      Many more bug fixes (from bug tracker and extra) and
	      performance improvements.
	    </p></li><li class="listitem"><p>
	      Version numbers:
	      </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		  Require PostgreSQL 9.0 (End Of Life of PostgreSQL 8.4 was July 2014)
		</p></li><li class="listitem"><p>
		  Require XOTcl 2.0 (presented at the Tcl conference in 2011). 
		</p></li></ul></div><p>
 	    </p></li></ul></div><p>
	  </p></li><li class="listitem"><p>Changes in application packages:
	  </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>
	      Various bug
	      fixes and improvements for e.g. file-storage, forums, news,
	      notifications, xowiki.
	    </p></li></ul></div><p>
	  </p></li></ul></div><p>
      </p></li></ul></div><p> Altogether, OpenACS 5.9.0 differs from OpenACS 5.8.1 by the
    following statistics
    </p><pre class="programlisting">
      3658 files changed, 120800 insertions(+), 97617 deletions(-)
    </pre><p>
    contributed by 4 committers (Michael Aram, Victor Guerra, Gustaf Neumann, Antonio Pisano) and
    patch/bugfix providers (Frank Bergmann, Andrew Helsley, Felix
    Mödritscher, Markus Moser, Franz Penz, Thomas Renner).
    These are significantly more  changes as the differences
    in the last releases. All packages of the release were tested with
    PostgreSQL 9.4.* and Tcl 8.5.*.
    </p><p>
    For more details, consult the
    <a class="ulink" href="" target="_top">raw ChangeLog</a>.
    </p></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-8-1"></a>Release 5.8.1</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
	The release contains the 78 packages of the oacs-5-8 branch.
	These packages contain the OpenACS core packages, major
	application packages (e.g. most the ones used on OpenACS.org), and
	DotLRN.
      </p></li><li class="listitem"><p>
	All packages have the following properties:
	</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><p>SQL:
	  </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>
	      All packages are PostgreSQL 9.1+ compatible 
	      (tested with PostgreSQL 9.3)
	    </p></li><li class="listitem"><p>
	      All SQL files with stored procedures use the
	      recommended $$ quoting
	    </p></li><li class="listitem"><p>
	      All SQL-functions have regular function arguments
	      instead of the old-style aliases
	    </p></li><li class="listitem"><p>
	      The function_args() (query-able meta-data) are
	      completed and fixed
	    </p></li><li class="listitem"><p>
	      Incompatible functions (e.g. for sequences) are
	      replaced.
	    </p></li></ul></div><p>	    
	  </p></li><li class="listitem"><p>Tcl:
	  </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>
	      All packages were brought up Tcl 8.5, including
	      the actual Tcl idioms where appropriate (e.g.
	      using the safer expand operator, range indices,
	      dict, lassign, etc.)
	    </p></li><li class="listitem"><p>
	      The code was updated to prefer byte-compiled functions
	      instead of legacy functions from ancient Tcl versions.
	    </p></li><li class="listitem"><p>
	      The code works with NaviServer and AOLserver.
	    </p></li></ul></div><p>
	  </p></li><li class="listitem"><p>API:
	  </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: square; "><li class="listitem"><p>
	      All packages are free from calls to deprecated code
	      (157 functions are marked as deprecated and will be
	      moved into an "outdated" package in the 5.9 or 6.0
	      release)
	    </p></li><li class="listitem"><p>
	      General overhaul of package management
	    </p></li><li class="listitem"><p>
	      Install-from-local and install-from-repository can be used
	      to install the provided packages based on a acs-core
	      installation. This means that also DotLRN can be
	      installed from repository or from
	      local into an existing OpenACS instance.
	    </p></li><li class="listitem"><p>
	      Install-from-repository offers filtering functions, allows
	      to install optionally from head-channel (for packages
	      not in the base channel of the installed instance).
	      Install-from-repository works more like an app-store,
	      showing as well vendor information
	    </p></li><li class="listitem"><p>
	      Packages can be equipped with xml-based configuration files
	      (e.g. changing parameters for style packages)
	    </p></li><li class="listitem"><p>
	      Package developers can upload .apm packages via workflow
	      for review by core members and for inclusion to the
	      repository. The option is integrated with package
	      management, the link is offered for local packages.
	      We hope to attract additional vendors (universities,
	      companies) to make their packages available on this
	      path.
	    </p></li><li class="listitem"><p>
	      New management-functions for package instances
	      (list, create, delete package instances)
	    </p></li><li class="listitem"><p>
	      Substantially improved API browser:
	      </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
		  Show just relevant parts of .xql files for a function
		</p></li><li class="listitem"><p>
		  Provide syntax-highlighting for www scripts as well
		</p></li><li class="listitem"><p>
		  Handle more special cases like e.g. util_memoize
		</p></li><li class="listitem"><p>
		  Provide links to Tcl functions depending on the installed
		  Tcl version
		</p></li><li class="listitem"><p>
		  Provide links to NaviServer or OpenACS functions depending
		  on installed version
		</p></li><li class="listitem"><p>
		  Syntax highlighter uses CSS rather than hard-coded markup
		</p></li><li class="listitem"><p>
		  Significant performance improvement for large
		  installations
		</p></li></ul></div><p>
 	    </p></li></ul></div><p>
	  </p></li></ul></div><p>
      </p></li></ul></div><p> Altogether, OpenACS 5.8.1 differs from OpenACS 5.8.0 in
    about 100,000 modifications (6145 commits) contributed by 5
    committers.
    </p></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-8-0"></a>Release 5.8.0</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
	Compatibility with PostgreSQL 9.2:
	The new version installs without any need for special parameter
	settings in new PostgreSQL versions. This makes it easier to use
	e.g. shared or packaged PostgreSQL installations.
      </p></li><li class="listitem"><p>Compatibility with NaviServer 4.99.5 or newer</p></li><li class="listitem"><p>Performance and scalability improvements</p></li><li class="listitem"><p>Various bug fixes </p></li></ul></div><p> Altogether, OpenACS 5.8.0 differs from OpenACS 5.7.0 in
    more than 18.000 modifications (781 commits) contributed by 7
    committers.
    </p></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-7-0"></a>Release 5.7.0</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
          Made changes that extend acs-kernel's create_type and create_attribute procs,
          so they're optionally able to create SQL tables and columns.  Optional metadata
          params allow for the automatic generation of foreign key references, check
          exprs, etc.
        </p></li></ul></div></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-6-0"></a>Release 5.6.0</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
          Added new package dependency type, "embeds".  This is a variant of the
          "extends" package dependency type added in OpenACS 5.5.0.  It allows one
          to write embeddable packages, with scripts made visible in client packages
          using URLs which include the embedded package's package key.  An example
          embeddable package might be a rewritten "attachments" package.  The current
          implementation requires a global instance be mounted, and client packages
          generate URLs to that global instance.  Among other things, this leads to
          the user navigating to the top-level subsite, losing any subsite theming
          that might be associated with a community.  Using "embeds", a rewritten
          package would run in the client package's context, maintaining theming and
          automatically associating attachments with the client package.
        </p><p>
          Added global package parameters - parameters can now have scope "local" or "global",
          with "local" being the default..
        </p><p>
          Fixes for ns_proxy handling
        </p><p>
          Significant speedup for large sites
        </p><p>
          Optional support for selenium remote control (acs-automated-tests)
        </p><p>
          New administration UI to manage mime types and extension map
        </p><p>
          Added acs-mail-lite package params for rollout support
        </p><p>
          Support for 3-chars language codes in acs-lang
        </p><p>
          Added OOXML mime types in acs-content-repository
        </p></li></ul></div></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-5-0"></a>Release 5.5.0</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>PostgreSQL 8.3 is now fully supported, including the use of the built-in
        standard version of tsearch2.
        </p><p>TinyMCE has been upgraded to 3.2.4.1 with language pack support.
        </p><p>acs-mail-lite now correctly implements rollout support.
        </p><p>
          Added new package dependency type, "extends".  Implements a weak form of
          package inheritance (parameters and, optionally, templates).  Multiple inheritance
          is supported.  For instance, the non-core "layout-managed-subsite" extends the
          "acs-subsite" and "layout-manager" packages, resulting in a package that
          combines the semantics of both.
        </p><p>
          Added new package attribute "implements-subsite-p" (default "f").  If true,
          this package may be mounted as a subsite and is expected to implement subsite
          semantics.  Typically used by packages which extend acs-subsite.
        </p><p>
          Added new package attribute "inherit-templates-p" (default "t").  If true,
          the package inherits templates defined in the packages it extends.  This means
          that the package only needs to specify templates where the UI of an extended
          package is modified or extended.  This greatly reduces the need to fork base
          packages when one needs to customize it.  Rather than modify the package directly,
          use "extends" rather than "requires" then rewrite those templates you need to
          customize.
        </p><p>
          Added a simple mechanism for defining subsite themes, removing the hard-wired
          choices implemented in earlier versions of OpenACS.  The default theme has been
          moved into a new package, "openacs-default-theme".  Simplifies the customization
          of the look and feel of OpenACS sites and subsites.
        </p><p>
          The install xml facility has been enhanced to allow the calling of arbitrary Tcl
          procedures and includes various other enhancements written by Xarg.  Packages can
          extend the facility, too.  As an example of what can be done, the configuration of
          .LRN communities could be moved from a set of interacting parameters to a cleaner
          XML description of how to build classes and clubs, etc.
        </p><p>
          Notifications now calls lang::util::localize on the message subject and body
          before sending the message out, using the recipient locale if set, the
          site-wide one if not.  This will cause message keys (entered as <span style="color: red">&lt;span&gt;#&lt;/span&gt;</span>....# strings)
          to be replaced with the language text for the chosen locale.
        </p></li></ul></div></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-4-2"></a>Release 5.4.2</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>This is a minor bugfix release.
        </p><p>Site node caching was removed as doesn't work correctly</p><p>Critical issues with search on oracle were fixed</p><p>More html strict work etc</p></li></ul></div></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-4-1"></a>Release 5.4.1</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>This is a minor bugfix release.
        </p></li></ul></div></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-4-0"></a>Release 5.4.0</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>New Templating API added to add scripts, css, etc to the HTML HEAD and BODY 
        sections of the generated HTML document.  Please see 
        /packages/acs-templating/tcl/head-procs.tcl or visit the template::head procs
        in the API browser for details.
        </p><p>Templates have been modified to comply with HTML strict</p><p>The Search package's results page has been improved</p><p>TinyMCE WYSIWYG support has been added, RTE and HTMLArea support dropped</p><p>acs-mail-lite's send has been cleaned up to properly encode content, to handle
        file attachments, etc.  "complex-send" will disappear from acs-core in a future
        release.</p></li></ul></div></div><p>The ChangeLogs include an annotated list of changes (<a class="xref" href="">???</a>) since the last release and in the
  entire 5.9 release sequence <a class="xref" href="">???</a>.</p><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-3-1"></a>Release 5.3.1</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Bug fixes.</p><p>New TIPs implemented.</p><p>All Core Automated Tests for Postgres pass.</p><p>New Site and Blank master templates and CSS compatible with the .LRN Zen
        work.  Compatibility master templates are provided for existing sites.</p></li></ul></div></div><p>The ChangeLogs include an annotated list of changes (<a class="xref" href="">???</a>) since the last release and in the
  entire 5.9 release sequence <a class="xref" href="">???</a>.</p><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-3-0"></a>Release 5.3.0</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Bug fixes.</p><p>New TIPs implemented.</p><p>All Core Automated Tests for Postgres pass.</p></li></ul></div></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-2-0"></a>Release 5.2.0</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Bug fixes.</p><p>New TIPs implemented.</p><p>This release does <span class="strong"><strong>not</strong></span> include new translations.</p></li></ul></div></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-1-4"></a>Release 5.1.4</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Bug fixes.</p><p>The missing CR Tcl API has been filled in, thanks to Rocael and
        his team and Dave Bauer.</p><p>This release does <span class="strong"><strong>not</strong></span> include new translations.</p></li></ul></div></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-1-3"></a>Release 5.1.3</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Bug fixes, primarily for .LRN compatibility in support of upcoming .LRN 2.1.0 releases. This release does <span class="strong"><strong>not</strong></span> include new translations since 5.1.2.
        </p></li></ul></div></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-1-2"></a>Release 5.1.2</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Translations synchronized with the translation server.
        Basque and Catalan added.
        </p></li><li class="listitem"><p>For a complete change list, see the  Change list since
        5.1.0 in <a class="xref" href="">???</a>.</p></li></ul></div></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-1-1"></a>Release 5.1.1</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>This is the first release using the newest adjustment to the versioning convention.  The OpenACS 5.1.1 tag will apply to OpenACS core as well as to the most recent released version of every package, including .LRN.</p></li><li class="listitem"><p>Translations synchronized with the translation server.
        </p></li><li class="listitem"><p><a class="ulink" href="http://openacs.org/bugtracker/openacs/com/acs-lang/bug?bug%5fnumber=1519" target="_top">Bug
        1519</a> fixed.  This involved renaming all catalog
        files for ch_ZH, TH_TH, AR_EG, AR_LB, ms_my, RO_RO, FA_IR,
        and HR_HR.  If you work with any of those locales, you
        should do a full catalog export and then import (via
        <a class="ulink" href="/acs-lang/admin" target="_top">/acs-lang/admin</a>) after
        upgrading acs-lang.  (And, of course, make a backup of both
        the files and database before upgrading.)</p></li><li class="listitem"><p>Other bug fixes since 5.1.0: <a class="ulink" href="http://openacs.org/bugtracker/openacs/bug?bug_number=1785" target="_top">1785</a>,
        <a class="ulink" href="http://openacs.org/bugtracker/openacs/bug?bug_number=1793" target="_top">1793</a>,
	and over a dozen additional bug fixes.</p></li><li class="listitem"><p>For a complete change list, see the  Change list since
        5.0.0 in <a class="xref" href="">???</a>.</p></li></ul></div></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-1-0"></a>Release 5.1.0</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Lots of little tweaks and fixes</p></li><li class="listitem"><p>Complete Change list since 5.0.0 in Changelog</p></li><li class="listitem"><p><a class="ulink" href="http://openacs.org/bugtracker/openacs/core?filter%2efix%5ffor%5fversion=125273&amp;filter%2estatus=closed" target="_top">Many Bug fixes</a></p></li></ul></div></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-0-4"></a>Release 5.0.4</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>New translations, including for .LRN 2.0.2.</p></li></ul></div></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-0-3"></a>Release 5.0.3</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Bug fixes: <a class="ulink" href="http://openacs.org/bugtracker/openacs/bug?bug%5fnumber=1560" target="_top">1560</a>, <a class="ulink" href="http://openacs.org/bugtracker/openacs/bug?bug%5fnumber=1556" target="_top">#1556. Site becomes unresponsive, requires restart</a></p></li></ul></div></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-0-2"></a>Release 5.0.2</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Bug fixes: <a class="ulink" href="http://openacs.org/bugtracker/openacs/bug?bug%5fnumber=1495" target="_top">#1495. Croatian enabled by default</a>, <a class="ulink" href="http://openacs.org/bugtracker/openacs/bug?bug%5fnumber=1496" target="_top">#1496. APM automated install fails if files have spaces in their names</a>, <a class="ulink" href="http://openacs.org/bugtracker/openacs/bug?bug%5fnumber=1494" target="_top">#1494. automated upgrade crashes (halting the upgrade process)</a></p></li><li class="listitem"><p>Complete Change list since 5.0.0 in Changelog</p></li><li class="listitem"><p>File tagging scheme in CVS changed to follow <a class="ulink" href="http://openacs.org/forums/message-view?message_id=161375" target="_top">TIP #46: (Approved) Rules for Version Numbering and CVS tagging of Packages</a></p></li></ul></div></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-0-1"></a>Release 5.0.1</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>All work on the translation server from 7 Nov 2003 to 7 Feb 2004 is now included in catalogs.</p></li><li class="listitem"><p>One new function in acs-tcl, util::age_pretty</p></li><li class="listitem"><p>Complete Change list since 5.0.0 in Changelog</p></li><li class="listitem"><p>Many documentation updates and doc bug fixes </p></li></ul></div></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="release-notes-5-0-0"></a>Release 5.0.0</h3></div></div></div><p>
      This is OpenACS 5.0.0.  This version contains no known security, data loss, or crashing bugs, nor any bugs judged release blockers.  This version has received manual testing.  It has passed current automated testing, which is not comprehensive.  This release contains work done on the translation server http://translate.openacs.org through 7 Nov 2003.  
    </p><p>
      Please report bugs using our
      <a class="ulink" href="http://openacs.org/bugtracker/openacs/" target="_top">
        Bug Tracker</a> at the <a class="ulink" href="http://openacs.org/" target="_top">OpenACS website</a>.
    </p><p>
      You may want to begin by reading our installation documentation for
      <a class="xref" href="unix-installation.html#unix-install" title="a Unix-like system">the section called “a Unix-like system”</a>.  Note that the Windows documentation is
      not current for OpenACS 5.9.0, but an alternative is to use John
      Sequeira's <a class="ulink" href="http://www.jsequeira.com/oasis/about.html" target="_top">Oasis VM
      project</a>.
    </p><p>
      After installation, the full documentation set can be found by visiting
      <code class="filename">http://yourserver/doc</code>.
    </p><p>
      New features in this release:       
    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
          Internationalization support. 

          A message catalog to store translated text, localization of
          dates, number formatting, timezone conversion, etc. Allows
          you to serve your users in their language.
        </p></li><li class="listitem"><p>
          External authentication.

          Integrate with outside user databases through e.g. LDAP, RADIUS, Kerberos, MS Active Directory. 
          Imports user information through IMS Enterprise 1.1 format. Easily extended to support other 
          authentication, password management, account creation, and account import mechanisms.

          This includes improvements to the basic cookie handling, so logins can be expired without the 
          user's identity being completely lost. You can set login to expire after a certain period 
          (e.g. 8 hours, then password must be refreshed), or you can have all issues login cookies
          expired at once, e.g. if you have left a permanent login cookie on a public machine somewhere.
        </p></li><li class="listitem"><p>
          User interface enhancements.

          All pages, including site-wide and subsite admin pages, will be
          templated, so they can be styled using master template and
          site-wide stylesheets.

          We have a new default-master template, which includes links to
          administration, your workspace, and login/logout, and is rendered
          using CSS.

          And there's a new community template
          (/packages/acs-subsite/www/group-master), which provides useful
          navigation to the applications and administrative UI in a
          subsite.

          In addition, there's new, simpler UI for managing members of a
          subsite, instantiating and mounting applications, setting
          permissions, parameters, etc.

          Site-wide admin as also seen the addition of a new simpler
          software install UI to replace the APM for non-developer users,
          and improved access to parameters, internationalization,
          automated testing, service contracts, etc.

          The list builder has been added for easily generating templated
          tables and lists, with features such as filtering, sorting,
          actions on multiple rows with checkboxes, etc. Most of all, it's
          fast to use, and results in consistently-looking,
          consistently-behaving, templated tables.
        </p></li><li class="listitem"><p>
          Automated testing.

          The automated testing framework has been improved significantly,
          and there are automated tests for a number of packages.
        </p></li><li class="listitem"><p>
          Security enhancements. 
	  
          HTML quoting now happens in the templating system, greatly
          minimizing the chance that users can sneak malicious HTML
          into the pages of other users.
        </p></li><li class="listitem"><p>
          Oracle 9i support.
        </p></li><li class="listitem"><p>
          Who's online feature.
        </p></li><li class="listitem"><p>
          Spell checking.
        </p></li></ul></div><p>
      Potential incompatibilities:
    </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
          With the release of OpenACS 5, PostgreSQL 7.2 is no longer supported.
          Upgrades are supported from OpenACS 4.6.3 under Oracle or 
          PostgreSQL 7.3.
        </p></li><li class="listitem"><p>
          The undocumented special handling of ~ and +variable+ in
          formtemplates, found in <code class="filename">packages/acs-templating/resources/*</code>,
          has been removed in favor of using &lt;noparse&gt; and
          \@variable\@ (the standard templating mechanisms).  Locally
          provided formtemplate styles still using these mechanisms
          will break.
        </p></li><li class="listitem"><p>
          Serving backup files and files from the CVS directories is turned off by default via the acs-kernel parameter
          ExcludedFiles in section request-processor (The variable provides a string match glob list of files and is defaulted to "*/CVS/* *~")
        </p></li></ul></div><div class="cvstag">($Id: release-notes.html,v 1.63 2024/09/11 06:15:47 gustafn Exp $)</div></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="id1338"></a>Release 4.6.3</h3></div></div></div><p><a class="ulink" href="release-notes-4-6-3.html" target="_top">Release Notes for 4.6.3</a></p></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="id1339"></a>Release 4.6.2</h3></div></div></div><p><a class="ulink" href="release-notes-4-6-2.html" target="_top">Release Notes for 4.6.2</a></p></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="id1340"></a>Release 4.6</h3></div></div></div><p><a class="ulink" href="release-notes-4-6.html" target="_top">Release Notes for 4.6</a></p></div><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a name="id1341"></a>Release 4.5</h3></div></div></div><p><a class="ulink" href="release-notes-4-5.html" target="_top">Release Notes for 4.5</a></p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="openacs-overview.html">Prev</a> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right"> <a accesskey="n" href="acs-admin.html">Next</a></td></tr><tr><td width="40%" align="left">Overview </td><td width="20%" align="center"><a accesskey="u" href="general-documents.html">Up</a></td><td width="40%" align="right"> Part II. Administrator's Guide</td></tr></table><hr><address><a href="mailto:docs@openacs.org">docs@openacs.org</a></address></div><a name="comments"></a></body></html>