To be safe, back up before upgrade. My testing appears OK though.

9.4.1

• when editing tags for multiple episodes, note existing tags not shown
• fixed crash when doing reconcile in Facets screen
• added tags filter in Episodes lists
• amended feeds refresh routine to filter out feeds not set to update when refreshing single or multiple feeds
• not rescheduling feeds refresh on first start

9.4.0

• list in Add to queue dialog is sorted
• amended logic for feeds refresh on mobile
• made feeds refresh in foreground service to avoid being killed by some system
• amended feeds refresh routines to allow multiple feeds
• in Queues screen
  • enabled down-swipe to refresh associated feeds
  • disabled refresh all feeds in menu (not proper place to do)
• edit episodes tags can be accessed in swipe actions and multi-select menus
• some code refactoring