[Pkg-mozext-maintainers] What's next with Thunderbird 140.x?

Carsten Schoenert c.schoenert at t-online.de
Sun Aug 10 09:14:29 BST 2025


What's the intended timeline for Thunderbird 140.x?

A short heads up on how we want to proceed with the most recent ESR 
version (140.x) of Thunderbird.

At the moment we have Thunderbird 128.x versions in unstable, testing, 
stable (trixie), oldstable (bookworm) and also oldoldstable (buster).

As usual we do prepare the switch to the most recent long time ESR 
version in the experimental tree, right now there is the version 
1:140.1.0esr-1.
We currently still see some problems with s390x, the build is failing 
while linking. This prevents currently and mostly, now after the release 
of trixie, an upload of the next 140.x version to unstable. But there is 
not really a need for to do this now.

Mozilla will provide also newer versions of the 128.x series in the near 
future that build fine in all of the above named releases.
Also we wont switch now immediately to 140.x for these releases for the 
stable release and older.

In the past we mostly used as earliest version for doing this move the 
second minor version from the newest ESR series. This would be 140.2.0esr.
But sometimes we were only able to use the third minor version for such 
a switch.

As Mike is mostly quicker with Firefox packaging we are mostly lucky to 
pick fixes from him we can also use within the Thunderbird package. I 
hope that he is also now able to find quicker then us a fix for the 
linkage timeout problem on s390x. That is happen also in in the firefox 
package) then I'm in good hope we can move over to 140.x in unstable 
with 140.2.0esr.

Once this is done we can work on also merging the trees for 
stable/oldstable.

-- 
Regards
Christoph & Carsten




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