I skimmed through the features and was very excited for the dark mode announcement. But that quickly went down the drain when I couldn't find how to force it from the setting, because I'm using i3wm, and there's no "dark mode" per se.
The other thing I'm wondering about is how this will integrate with OpenGPG, more specifically if it will allow the use with smartcards. And it looks like it planned ![1]
Great work Team Thunderbird. Been a fan for the past 5 years, will be for the foreseeable future.
[1]: https://wiki.mozilla.org/Thunderbird:OpenPGP:Status