From the changelog:
* Bugfix: apparently some WP update changed the capability checking worked, so the code to get all caps has been updated
* Bugfix: custom (per event) event_registration_pending_email_body was not working
* Bugfix: fix a WP php notice for wp_enqueue_script: it should be called from within other wp_* calls, not directly. So I added it to the callback for add_action('wp_enqueue_scripts')
* Bugfix: fix typo with acl for "Edit events"
* Extra: the admin backend will now use a new date_format setting in the user's profile (if present) for all dates shown