K-9 Mail v6.201

What's Changed

• Added support for using OAuth 2.0 with Office365 accounts (@cketti)
• Fixed a bug that could lead to two message lists being displayed on top of each other (@cketti)
• Avoid a crash when trying to create new message notifications but the notification sound couldn't be accessed (@cketti)
• Fixed a bug where multi-select mode was exited early in some cases (@cketti, @rezazarchi)
• Fixed "Select all" visibility in menu when rotating the device (@rezazarchi)
• Don't require re-authorization when getting an OAuth token fails due to a temporary error (@cketti)
• Updated translations (many volunteers via Transifex)

Full Changelog: 6.200...6.201

K-9 Mail v6.200

What's Changed

• Added support for using OAuth 2.0 with Google, Yahoo, AOL, and personal Microsoft accounts (Office365 accounts are not supported yet)
• Added "Unsubscribe" action that is displayed in the menu when viewing a message that contains an Unsubscribe header
• Various bug fixes and improvements
• Updated translations

Full Changelog: 6.000...6.200

K-9 Mail v6.101

What's Changed

• Added support for using OAuth 2.0 with personal Microsoft accounts (Office365 accounts don't work yet) (@cketti)
• Made the transition of existing Gmail accounts to OAuth 2.0 a bit easier (@cketti)
• Fixed various small UI bugs (@rezazarchi, @cketti)
• Updated translations (many volunteers via Transifex)

Full Changelog: 6.100...6.101

K-9 Mail v6.100

What's Changed

• Added support for using OAuth 2.0 with Google accounts (@daquexian, @philipwhiuk, @starshipcoder, @Monkey-Matt, @wiktor-k, @cketti)
• Added support for using OAuth 2.0 with Yahoo and AOL accounts (@cketti)
• Added "Unsubscribe" action that is displayed in the menu when viewing a message that contains an Unsubscribe header (@TheLastProject)
• Fixed a bug where unrelated notifications where cleared after synchronizing a folder containing no unread messages (@cketti)
• Fixed rare problem with decoding format=flowed messages (@cketti)
• Various other small bug fixes and improvements (@Chiogros, @rezazarchi, @schlagi123, @Lampotrias, @cketti)
• Updated translations (many volunteers via Transifex)

New Contributors

• @Chiogros made their first contribution in #5993
• @Lampotrias made their first contribution in #6081
• @TheLastProject made their first contribution in #6051

Full Changelog: 6.000...6.100

K-9 Mail v6.000

What's Changed

• Added support for setting the notification vibration pattern on Android 8+
• Added support for setting a custom notification light color on Android 8+
• Added a setting to configure the notification sound on Android 8+ (because some vendor-specific Android versions removed this feature from their user interface)
• Restore 'new mail' notifications when the app is restarted
• Open message from notification in Unified Inbox if possible
• Hide sensitive information when sync and error notifications are displayed on the lock screen
• Added a setting to suppress notifications for chat messages
• Don't create notifications when manually refreshing the message list
• Don't show notifications for new messages when syncing a folder for the first time
• Removed the "hide subject in notifications" setting; use the "lock screen notifications" setting instead
• Fixed back button behavior when opening a single message from a notification
• A lot of other fixes related to notifications
• Added support for entering Reply-To addresses when composing a message
• Optionally show starred message count in side drawer
• Require the user to authenticate before unmasking server passwords
• Added a menu option to export the debug log under Settings → General settings → Debugging
• IMAP: Removed setting to enable remote search (it's now enabled by default; still requires an additional button press)
• Numerous other bug fixes and improvements (see change log entries for 5.9xx)

Full Changelog: 5.806...6.000

K-9 Mail v5.916

What's Changed

• Fixed bug that crashed the app when setting a notification sound on certain devices (@cketti)
• Fixed crash when rotating the device while a delete confirmation dialog was showing (@rezazarchi)

Full Changelog: 5.915...5.916

K-9 Mail v5.915

What's Changed

• Fixed settings import (@cketti)
• Fixed bug where the configuration of a notification category wasn't properly synced with in-app notification settings (@cketti)
• Fixed display issues when switching the language inside the app (@rezazarchi, @cketti)
• Updated translations (many volunteers via Transifex)

Full Changelog: 5.914...5.915

5.914

What's Changed

• The name and description of notification categories are now updated when the app language is changed (@cketti)
• Fixed bug where notification settings might not have been properly restored on settings import (@cketti)
• Fixed a crash when tapping the unread widget tries to open a folder that no longer exists (@cketti)
• Updated translations (many volunteers via Transifex)

Full Changelog: 5.913...5.914

K-9 Mail v5.913

What's Changed

• Don't create notifications when manually refreshing the message list (@cketti)
• Fixed import and export of notification settings (@cketti)
• Fixed bug that could lead to multiple notifications being created for the same message (@cketti)
• Fixed bug that sometimes crashed the app after changing the notification sound (@cketti)
• Added support for messages that specified the character set in multiple ways (@cketti)
• A lot of internal improvements (@cketti)
• Updated translations (many volunteers via Transifex)

Full Changelog: 5.912...5.913

K-9 Mail v5.912

What's Changed

• Fixed bugs where notifications weren't removed when they should have been (@cketti)
• Added a setting to configure the notification sound on Android 8+ (because some vendor-specific Android versions removed this feature from their user interface) (@cketti)
• Automatically recover in situations where messages can't be sent because the Outbox folder is missing (@cketti)
• Added more logging around 'new message' notifications (@cketti)
• Always prompt which app to use when sharing links (@cketti)
• Removed the the button bar in the drawer and switched back to the sticky footer (@cketti)
• Don't expose MessageProvider to third-party apps (@cketti)
• Updated the app to target the Android 12 API (@cketti)
• Updated translations (many volunteers via Transifex)

Full Changelog: 5.911...5.912