Hello. This weekend I'm going to update this instance to Mastodon v3.0.0... There are a lot of changes, some are breaking too, so take a look at the changelog:
https://github.com/tootsuite/mastodon/releases/tag/v3.0.0
The most important, I thinks, is that OStatus support has been removed.
github.comtootsuite/mastodonYour self-hosted, globally interconnected microblogging community - tootsuite/mastodon