OpenACS Version 5.10.0 Release of OpenACS 5.10.0: This is the announcement of the release of the OpenACS 5.10.0 [1]. This release contains the most changes in OpenACS between changes in history, including many security and performance improvements and includes new functionalities. This new releaseand differs from OpenACS 5.9.1 by the following statistics 3445 files changed, 215464 insertions(+), 193642 deletions(-) The release of OpenACS 5.10.0 contains the 93 packages of the oacs-5-10 branch (plus 9 compared to oacs-5-9). 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. The release contains several security improvements and new functions, several new packages were added, and 370 bugs noted in the bug tracker have been fixed (plus many more not noted there). For a partial summary of changes, please check the release notes [2], for the more detailed list of changes since the release of OpenACS 5.9.1, see [3]. Many changes/enhancements of the application packages are just contained in the detailed changelog. These changes were 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.*. [1] https://openacs.org/projects/openacs/download/ [2] https://openacs.org/doc/release-notes [3] https://openacs.org/changelogs/ChangeLog-5.10.0