Android 4.2.1 now available

This release changes our mobile notification system - we now finally use "push" notifications. This will fix the crash issues Android 8 users were experiencing too.

Android App 4.2.1 available now

Conditional moves will be added next, before all recent updates are migrated to iOS. (iOS in particular will benefit from the new push notifications, as currently the existing notifications do not fire if the app is unloaded.)