Totara 2.5.3 is a "snapshot" release containing bug fixes and improvements.

Here's the changelog:

Release 2.5.3 (10th December 2013):
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Improvements:
    T-11422    Made the audience visibility column editable for Audiences visible learning tabs
    T-11658    Completions upload reports now show all records instead of just errors
    T-11693    Improved required learning courseset operators to allow for longer string translations
    T-11675    Added additional warnings on the archive completions confirmation page

Database Upgrades:
    T-11682    Changed program/certification completion times to be based off course completion
    T-11670    Added coursename variable to facetoface notifications and fixed the labelling of facetofacename variables
    T-11680    Fixed bug where assigning a manager to a secondary position could affect primary positions

Bug Fixes:
    T-11607    Fixed dates when importing certifications using the historic import
    T-11671    Fixed the handling of blank values for date/time custom fields in Totara Sync
    T-11614    Fixed the framework selector for appraisal and feedback360 assignment dialogs
    T-11622    Fixed goal permissions being applied inconsistently
    T-11690    Fixed a string not being translated correctly on the required learning page
    T-11673    Fixed access to reports when site roles have been renamed
    T-11569    Fixed the required course grade for languages using different characters for the decimal point
    T-11687    Fixed textarea and file custom course fields not displaying in report builder
    T-11629    Fixed programs sending duplicate enrolment messages when changing due date between set and relative
    T-11552    Fixed icals not opening automatically in Outlook 2010
    T-11534    Fixed facetoface calendar entries not taking course visibility into account
    T-11657    Fixed role name missing in security overview report
    T-11650    Fixed access to facetoface approvals page with guest access enabled
    T-11608    Fixed "Restrict initial display" option not being applied in embedded reports
    T-11603    Fixed rendering issue in appraisal snapshots
    T-11685    Fixed facetoface notifications form elements not saving when unchecked
    T-11661    Prevent password reuse if rotation limit setting enabled
    T-11681    Fixed ability to view courses within required learning for learners
    T-11672    Fixed hardcoded string in the completion imports success message

API Changes:
    T-11662    Added a database event to delete related position assignments when a user is deleted