Hi all,

tl;dr: No action needed, this should be transparent. Do report any issue,
and bypass with `LANDO_TRY_CONFIG=lando-prod ./mach try`.

As you may be aware, we switched to a new version of Lando just before we
started using GitHub for Firefox. Until now, however, all Try pushes were
still going through the old Lando instance.

I have just landed some logic that now makes `mach try` use the
implementation of Try in new Lando. You don't need to do anything about
this.

As added benefits, it should provide better support for patches with weird
Unicode characters, a more detailed JSON status API (e.g.,
https://lando.moz.tools/landing_jobs/36216), and the ability to see the
landing queue ahead of your own job, like for normal landing jobs (e.g.,
https://lando.moz.tools/landings/36216; it is linked as `url` in the JSON
status data). The latter still needs a bit of polish, but is essentially
functional.

This should be a completely transparent change. However, if you do notice
any issue, please report this to https://matrix.to/#/#conduit:mozilla.org
(`mach` will remind you of this on every push for some time; so much for
transparency, heh).

If you come across a situation where you want to resort to the
true-and-tested old Lando for your Try push, you can still force its use by
setting `LANDO_TRY_CONFIG=lando-prod` in your environment. For example

    LANDO_TRY_CONFIG=lando-prod ./mach try

We'll soak-test this for a couple of weeks and, barring any major issue,
this will become the default-for-good.

CAVEATS:
* This is only for autoland / main for now; we'll backport to ESRs in the
`default-for-good` period.
* `mach try perf` still uses the old Lando instance (you may see more Auth0
reauthentication screens when you switch from `try` to `try perf` in the
interim; “transparent”, he said).

Enjoy (hopefully)!

-- 
Olivier Mehani [:shtrom] <[email protected]>
Please consider the environment before using AI on this email.

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