Builtin Apps:

• About app: make more beautiful
• AppStore app: add Settings screen to choose backend
• WiFi app: check 'hidden' in EditNetwork
• Wifi app: add support for scanning wifi QR codes to 'Add Network'

Frameworks:

• Camera and QR scanning: fix aspect ratio for higher resolutions
• Create new SettingsActivity and SettingActivity framework so apps can easily add settings screens with just a few lines of code
• Create CameraManager framework so apps can easily check whether there is a camera available etc.
• Simplify and unify most frameworks to make developing apps easier (apps may require an update)

OS:

• Improve robustness by catching unhandled app exceptions
• Improve robustness with custom exception that does not deinit() the TaskHandler
• Improve robustness by disabling default TaskHandler exception hook that throws uncaught exception
• Don't rate-limit update_ui_threadsafe_if_foreground (no need)
• Make 'Power Off' button on desktop exit completely

What to do:

• To update, open the OSUpdate app and click "Update OS"
• To do a fresh install, use the webinstaller at install.MicroPythonOS.com