The subject of one big change is Scratch, a dog (an actual dog, not a disguised demon from the Nine Hells) who can be recruited into your party as a loyal and trustworthy pet. You can pet Scratch and play fetch with him, and following the update he'll also be able to sniff out good spots to dig for treasure himself, which will hopefully lead him to discover more and better things to bring to you.
The update also fixes a problem with spell slots that was preventing multiclassed players from leveling up, a cross-save issue that was causing games to become stuck while syncing, a crash that could occur "when selecting a summon without a hotbar while a deck in the hotbar was maximised" (I'm guessing that one didn't affect a whole lot of people), and another "edge case issue" that was preventing people from taking a Long Rest.
