https://mattermost.com/blog/mattermost-5-31-2-extended-support-release-released/
Mattermost 5.31.2 Extended Support Release is now available
Sep 4, 2021 - Mattermost 5.31.2 for Team Edition (TE) and Enterprise Edition (EE) is now available for download.
extended support release5 31is nowmattermost2