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

[Emilio Pozuelo Monfort]

Hi,

On 10/08/2025 10:14, Carsten Schoenert wrote:
> 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.

We should be ready for 140.x. I successfully backported and executed thunderbird 
140.2.0esr-1 to trixie (disabling system nss), bookworm (a few more changes, 
including using rustc-web, some memory related issues, librnp and libotr 
dependency issues...) and bullseye (using the backported llvm 19 and couple of 
build fixes).

For thunderbird, if you want, I can add those changes to the respective branches 
if can you update debian/{trixie,bookworm,bullseye} to 140.x.

Cheers,
Emilio