Totara 2.2.4 is a "security" release, because it includes important fixes from the latest release of Moodle (Moodle 2.2.5). We recommend upgrading your site to this release. Here's the changelog:
Release 2.2.4 (12 September 2012):
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Security fixes:
Fixes from MoodleHQ http://docs.moodle.org/dev/Moodle_2.2.5_release_notes
Improvements:
T-9804 Improvements to Arabic, Chinese, Dutch, Finnish, French, German, Hebrew, Hungarian, Italian, Japanese,
Polish, Portuguese (Brazilian), Spanish (Castilian), Spanish (International), Swedish and Thai language packs
T-9931 Add "course visibility" column and filter to Report Builder
Bug fixes:
T-9924 Fix bug when optional Learning Plan objective due date is not set
T-9822 Fix empty Quicklinks after fresh install
T-9712 Fix notification types and language string in Plan objective/priority scales
T-9739 Remove the change course button from recurring courses in Programs
T-9842 Fix problem with icons being miniaturised
T-9916 Fix Filters Tab form actions (delete, advanced etc) in Report Builder
T-9936 Fix file handling bug in webdav repository
T-9912 Fix MSSQL truncating table error in totara sync
T-9890 Fix event triggers for Program user assignments when completion based on time from first login
Simon