The final release note is provided below and contains the following improvements and fixes:

Fixes:

• iOSMinimum iOS version is now iOS 16. Devices on iOS 15 or older won't get this update.
• Microsoft sign-in library update (MSAL)
• Attachment fixes:
  • Attachments not loading or downloading
  • "Open All" not opening attachments correctly
  • Attachments not loading in full-screen mode
  • Downloaded attachments failing to save, or opening as a blank tab
  • Downloads stopping or restarting partway through a session
  • Download Center closing or missing taps while downloads runHighlighting tool now deletes a single highlight instead of all of them