Test on one iOS and one Android of your choice. As a teacher, navigate to a forum with many discussions (3.7 or 3.8 Moodle version). Check each discussion has a contextual menu button (aka more). Check you can lock/unlock, Pin/Unpin, Star/unstar discussions from there. Check Pin is shown when pinned, star is shown when starred but not pinned and locked is not shown there (you can see the status entering the discussion). Check each discussion has: a title in bold, the user avatar, fullname and discussion creation date (full date and time). Also last post "time ago" and number of replies. Check as a student you can only star/unstar. Enter one discussion with many replies. Check reply subjects are not shown when they have been not modified by the user (means that reply subject is Re: Main subject). Change to nested display. (Sorting is saved for the user and site). Go to another discussion and check it's directly shown in nested display. Now search or create a discussion posts that have attachments of different file types such as image, audio, video and documents. Check image, audio and video are displayed directly into the post but document it's shown as an attachment (with the file name, icon and download button).