We've shipped Betterbird 140.7.1esr-bb18 today. Please refer to the Release Notes for full details.
The Thunderbird folks are preparing their 140.7.1 release for next Tuesday, 27th January 2026 to fix a vulnerability in an OpenPGP edge case. Due to scheduling constraints, we're already shipping this now.
Since only 13 days have passed since our Release 140.7.0esr-bb17, this release only contains a few items. By popular demand, we're now distinguishing in the Activity Manager now whether messages were downloaded or not by giving the icon a different colour:
We've also advanced 11 bug fixes the Thunderbird folks are not shipping to their ESR users, refer to our opinion about this policy in this prior blog post.