# mod_lesson Upgrade notes

## 5.1

### Added

- Added new 'count_all_submissions', 'count_submitted_participants' and 'count_all_participants' functions needed by the overview page.

  For more information see [MDL-83896](https://tracker.moodle.org/browse/MDL-83896)

## 5.0

### Removed

- Remove unused /mod/lesson/tabs.php

  For more information see [MDL-82937](https://tracker.moodle.org/browse/MDL-82937)
