Oh, nice. I see it's on F-Droid, which is worth mentioning.
My own phone is set up for F-Droid only; no Google.
You can enable the 'Unstable updates' option in F-Droid's settings to receive notifications for new beta versions to avoid having to check manually. The downside is that you'll receive these updates for all apps, so be sure to check if a new version is a beta version for apps that you want to keep on stable versions.