(Please direct responses to mozilla.dev.planning)
To follow-up on my post yesterday, here's then when and how of branching:
Tag mozilla-central and l10n repositories with GECKO_1_9_1_BASE so we know where we branched going forward
File IT bugs to have mozilla-central, l10n repositories cloned and a Firefox 3.1 Tinderbox created.
While this is happening RelEng will do as much setup of infrastructure as possible.
Once the clones are finished we will do some tests in our staging environment.
When were satisfied with those results we will start push those infrastructure changes to production.
ETA on being fully up and running (that is to say: parity with mozilla-central) is early in the PST day Monday, November 24th. We do expect to have infrastructure up this week but some baking time, especially for Talos, is important.
Other important information:
mozilla-central will NOT be used for trunk development until after we tag for Firefox 3.1b2. Once that happens we will bump mozilla-central versions to 1.9.2a1pre/3.2a1pre.
The new mozilla-1.9.1 repository will be rebranded to Shiretoko to avoid confusion
https://bugzilla.mozilla.org/show_bug.cgi?id=464640 is the tracking bug for branching, for those interested in tracking the blow-by-blow.