From the category settings page, you can now view all the chat channels associated with that category for easier chat channel management.

We've simplified the category creation process so that basic categories can be set up in just a few easy steps. Advanced configuration settings are still available, but are hidden by default.

We've created a new Upcoming Changes config page to communicate updates to Discourse and let admins manage how they're implemented in their community. We believe this system will help us keeping improving Discourse in a safe, transparent way.