It brings an extensive bookmarking system, signup request support, signup notifications, extended markdown rendering, custom notification settings to set magazines, users, threads and microblogs to default, loud or muted, setting a default sort for the front page and comment lists, a new image delete command for admins and documentation changes.

See this thread for a detailed review of the update: https://gehirneimer.de/m/mbinReleases/t/486586

As a reminder, if you'd like to help support the kbin.earth instance financially, there are a few donation links in the about page.

Also, for those who use Interstellar, expect an update sometime soon that will utilize some of these new features. Unfortunately, there is a bug in the Mbin API that will not let me add custom notification settings controls quite yet to Interstellar, but bookmarking in the app will be supported.