We just released Mastodon 4.3.7 and 4.2.20 and 4.1.25. They contain a few minor bug fixes.
Note that this will most likely be the last Mastodon 4.1 release, and 4.1 will be unsupported in 6 days, so we highly advise you to update if you run it.
Full release notes and update instructions are available on our GitHub release page: https://github.com/mastodon/mastodon/releases/
