In this update, you can choose between FCM (Google Play Services) and WebSocket as the push service directly from the notification settings, without the need to re-register within the app.
Keep in mind that Molly-FOSS doesn’t support FCM because Play Services isn’t open-source. However, can switch between Molly and Molly-FOSS at any time by simply installing the other app. One app will replace the other and all your data will remain unchanged.
This update also merges the latest Signal v7.21.5.
For the complete list of changes, see the CHANGELOG.