[Learners] Extend the Learn dropdown menu in the navbar to handle the case where there are multiple classrooms. #22436
[Learners] Add a link to the Oppia blog in the About menu in the navbar. #22891
[Learners] Prevent multiple-submit errors in the newsletter form in the site footer. #22664
[Learners] Get the redesigned learner dashboard ready for launch. #22736
[Learners] Rename revision cards to study guides, and rename tabs on the Topic Viewer page to Learn/Practice/Study. #22738
[Learners] Allow submitting multiple-choice answers with the Enter key in item selection input. #22658
[Creators] Fix error that arises when editing the name of a topic as a topic manager. #22346
[Creators] Fix discrepancies between the topic editor preview and learner view modes for the practice session feature. #21874
[Creators] Show a warning message to creators if a question in an exploration has duplicate answer groups. #22062
[Contributors] Fix a bug that resulted in errors arising after accepting/rejecting a translation and waiting for 30 seconds. #21885
[Contributors] Populate missing images in existing translation suggestions. #21378