Totara 2.4.21 has been released. It includes bug fixes, improvements, security fixes and the latest improvements from Moodle (Moodle version 2.4.11). We recommend upgrading to this version.

Here's the changelog:

Release 2.4.21 (23rd July 2014):
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Security issues:

 MoodleHQ       http://docs.moodle.org/dev/Moodle_2.4.11_release_notes
    T-12579        Fixed potential security risk in Totara Sync when using database sources

Bug Fixes:
    T-12203        Fixed reaggregation of Competencies when the aggregation type is changed
    T-12638        Fixed restoring course backups with existing completion records
    T-12480        Fixed issue with including a competency's linked courses in a learning plan
    T-12720        Fixed an issue with filtering messages by icon in the Alerts block
    T-12568        Fixed blank password fields causing failures in Totara Sync
    T-11954        Fixed the sort order of subcategories in the category list
    T-12510        Fixed cases where audiences are being referred to as cohorts
    T-12301        Fixed temporary ical attachment files not being deleted after the notification is sent
    T-12034        Fixed the default event change notification not sending correctly for Facetoface