On the submission's web site there is "Thunderbird version 91.0 is only offered as direct download from thunderbird.net and not as an upgrade from Thunderbird version 78 or earlier."
Why is that? Is upgrading safe?
And thunderbird.net only offers me 78, anyway.
[0] https://www.mozilla.org/en-US/security/advisories/mfsa2021-3...
And who can blame them really, no one pays them to work on these plugins. If you wanted to make sure your plugins worked before an update than you should go test them on a beta yourself.
Unfortunately delaying an update doesn't really solve the problem as developers still wait for the "its broken" reports before fixing things.
It seems to be downloadable here: https://download-installer.cdn.mozilla.net/pub/thunderbird/r...
In typical Mozilla fashion, the link to download 91 on their Release Notes [0] page just goes back to their frontpage again.
[0] https://www.thunderbird.net/en-US/thunderbird/91.0/releaseno...
> Thunderbird version 91.0 is only offered as direct download from thunderbird.net and not as an upgrade from Thunderbird version 78 or earlier. *A future release will provide updates from earlier versions.*
No, it still isn't.