The list of URLs at https://latest.mattermost.com/ that redirect to current Mattermost software is great. Doing an HTTP HEAD request on any of them shows the current semantic version in the Location header, great for checking for patch updates.

For some reason, ESR versions are not listed there. It would be very helpful for sysadmins if your list also had these:
https://latest.mattermost.com/mattermost-enterprise-esr-linux
https://latest.mattermost.com/mattermost-team-esr-linux
which could redirect to the versions marked as Extended Support Release on https://docs.mattermost.com/about/version-archive.html