jma...@mozilla.com writes:

> As our next ESR is upcoming, I would like to turn off linux32 on
> Firefox 69 and let it ride the trains and stay on 68 ESR.  This will
> allow builds/tests to be supported with security updates into 2021.

Does this mean that Linux on 32-bit x86 is being demoted to Tier 3, like
(non-Android) Linux on other uncommon architectures?  Have we identified
a maintainer to take responsibility for testing and working with us to
fix regressions?  I don't see how it can remain Tier 1 without CI coverage.

Also, will it still be possible to explicitly request linux32 on Try
runs?  Our cross-building story is not good, and being able to use Try
for this helpful for avoiding regressions and testing changes to
arch-dependent code.

For context, I'm the module owner for Linux sandboxing, and we have to
deal with low-level details of the system call ABI, and as a result
there is nontrivial code used only for linux32 that I'm responsible for.

--Jed
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