There are several enhancements with this upgrade. Accessibility improvements in key Moodle pages like the Dashboard, many of the Activities, as well as aspects of the Gradebook.
Full H5P integration: H5P is now available as a Moodle activity that teachers can connect to the gradebook.
A new Content bank for H5P: a shared space where you can create and store H5P activities and use them anywhere in your courses
The new Activity chooser makes it easier to locate activities and resources. The new ‘Starred’ tab lets you favourite your most used items, and Moodle administrators can recommend activities and resources for teachers in the new ‘Recommended’ tab.
Participants filter is now more powerful and allows you to combine different filter options and build filters with multiple conditions.