Version 1.10.1 (63586) was released yesterday, (as a bugfix for 1.10.0 which was released on Tuesday), and became available on Apple TV today, so it likes like your automatic updates are working just fine.
You can find out what the latest version on all platforms is by checking this post:
https://forums.zwift.com/t/what-are-the-latest-zwift-game-and-zwift-companion-app-version-numbers/