New:

• Default folder expansion behavior can be controlled by setting
• Preferred content type can be switched between text/plain and text/html

Fixed:

• Switching folders required an excessive number of clicks
• Fix various edge-to-edge issues
• Application crashed at startup
• Application crashed on Pixel 10 Pro when returning to message list
• OAuth SMTP authentication failed with some Microsoft servers

Unresolved:

• Deleted/read messages in unified inbox may not update until manual refresh

Contributors:

• @tenzap made their first contribution in https://github.com/thunderbird/thunderbird-android/pull/10037
• Thanks to @dandarnell, @wmontwe, @coreycb, @shamim-emon, @rafaeltonholo, @tenzap, @krzysdz

Full Changelog: https://github.com/thunderbird/thunderbird-android/compare/THUNDERBIRD_15_0...THUNDERBIRD_16_0