Shortly after Thunderbird 78, a new minor update is released by the team behind this excellent mail app. It features a couple of new features, including a feature-complete implementation of OpenPGP, and number of fixes and improvements.
Thunderbird is my preferred email client of choice. I use this app on every PC and on every operating system I use. It is stable, contains all the features you need, supports add-ons and also comes with a useful RSS reader. I am using Thunderbird for many years and never felt the need to look for an alternative.
Thunderbird 78 doesn't support classic XUL add-ons any more, but includes some of their features natively. E.g. on Windows you can minimize the app to the system tray.
Thunderbird 78.1.0 comes with the following changes.
What's new in Thunderbird 78.1.0
- New: OpenPGP support is now feature complete. Improvements: new Key Wizard, online searching for OpenPGP keys, and more.
- New: The preferences tab now has a search field
- Changed: Dark background in message reader is now disabled
- Fix: Thunderbird startup was slow when using folder color customizations with many folders. Previously configured colors will not be migrated.
- Fix: Mail quota usage in status bar did not support terabyte folder sizes
- Fix: Changing Junk mail settings with keyboard toggled wrong setting
- Fix: Advanced IMAP server preferences not saved in Account Manager
- Fix: Address book migration updates and fixes
- Fix: Address book: Last Modified Date was not updated
Also, the app includes dark mode improvements and various security fixes.
Keep in mind that this release comes with two known issues.
- Mail header toolbar (Reply, Forward, Archive, Junk buttons) no longer configurable
- Fixed width font not working in compose window
The release notes are available here.