Fixed output to GetPrettyName operations: should be 'pretty_name:string', not 'object_type:string'. I'm pretty sure we don't need an upgrade script, since nobody checks the names of those returned values, anyway.
changing upgrade of packages to not remove parameters that are not present in the new version (this can be done explicitly in an upgrade script though). See discussion here: http://openacs.org/forums/message-view?message_id=100077
making log history on the log page be N days back from last logged entry instead of today. Adding permissions checking for editing of log entries. You can edit a log entry if you have edit privilege on it or if you created it (we currently don't grant admin to the creator of log entries, but maybe we should)