Update Mattermost to 5.12.2
Mattermost 5.12 includes a number of new features including infinite scrolling, bot accounts, a bunch of improvements to the System Console, and Net Promoter Score surveys. The full changelog for it is available here.
It also includes the medium severity security fix included in Matetrmost 5.11.1 and Mattermost 5.10.2.
Mattermost 5.12.1 and 5.12.2 contain fixes for some bugs in the initial 5.12.0 release. There's also a 5.12.3 coming, but it's to fix a bug that only effects Mattermost EE, so I won't be submitting it to GitLab unless something else comes up.