TB-102 has issues with at least one quite popular addon (TbSync) https://github.com/jobisoft/TbSync/issues/601#issuecomment-1239194223 I didn't try with a Gentoo build, but Arch is affected (personal experience) and reportedly Fedora too (https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/thread/GAQJY242NNKUHGAUMWBHL42YZNV44VJ6/#GAQJY242NNKUHGAUMWBHL42YZNV44VJ6). Reproducible: Always
Yeah... 91 won't get any more releases, and with the anticipation of upcoming security issues fixed in the next release, 91 will be gone after ~2-3 weeks. Some distros, as you pointed out, are already offering 102 without a chance to even keep 91. The addon author is way behind the schedule, and people should help the addon to be updated for 102. No way distributions will keep 91 for a long time anymore, if it's still around somewhere.
Okay so at least the addon is updated to "not be compatible" with 102. I can't install it. So after an upgrade to 102, it should automatically be disabled even if you have it installed. But I don't know what it does, and if disabling it will cause some issues, but an upgrade looks safer in that perspective at least it won't load.
The author has finally updated tbsync, but it will need some time until it gets released on thunderbird.net.
91.13.1 will be in the tree for a little bit longer, dictated by its security status. https://bugs.gentoo.org/872572 https://www.thunderbird.net/en-US/thunderbird/91.13.1/releasenotes/ I guess it's possible Thunderbird upstream makes a 91.13.2 release if people stay unhappy with 102.
(In reply to Harald Judt from comment #3) > The author has finally updated tbsync, but it will need some time until it > gets released on thunderbird.net. Indeed, TBSync/EAS upstream tracking is here (still open): https://github.com/jobisoft/EAS-4-TbSync/issues/167 :-)
Fixed by upstream.