This release includes the following changes.
Learner submissions for problems that have more than one part are now counted only once, for the entire problem, rather than once for each part of the problem.
In the performance graphs for graded content and ungraded problems, the number of correct and incorrect submissions received is now averaged by the number of problems.
For a list of the changes in this and previous releases, see the edX Release Notes.
You can access the weekly release notes as well as all other edX documentation at docs.edx.org.