I notice they also update the original post
Update 1.23.1 - March 14th
We’ve released update 1.23.1 for all platforms. It contains the following fixes.
- Fixed an issue causing some users to not get the correct amount of XP for Tour of Watopia 2022 events.
- Enabled access to the remaining flexible training plan workouts in the on-demand workouts folder.
Update 1.23.2 - March 17th
We’ve released update 1.23.2 for all platforms. It contains the following fix.
- Fixed an issue that would cause some users to crash when participating in an event where PowerUps were disabled.
Update 1.23.3 - March 24th
We’ve released update 1.23.3 for all platforms. It contains the following fix.
- Fixed an issue causing personal bests and critical power curve stats to be lost after saving your ride on iOS, Apple TV and Android clients.
They also keep an up to date version of What are the latest Zwift Game and Zwift Companion app version numbers?
But of course neither of those answer the OP question as to whether notifications/emails are sent out.
EDIT: Or does this answer the question - I don’t fully understand what it means
- Android : v 1.23.3 (1.0.100641) March 17 2022. Your app should alert you that an update is available.
- iOS : v 1.23.3 (1.0.100641) March 17 2022. Your app should alert you that an update is available.
- Apple TV v 1.23.3 (1.0.100641) March 17 2022. Your app should alert you that an update is available.