Managing Releases
Target Milestones
A bug is typically marked as fixed when it lands on trunk (i.e. comm-central). The only exception to this is when it does not actually apply to trunk, but only to a stable branch.
Thunderbird Drivers request that when a bug is marked as fixed, its milestone is updated to be the match the next trunk release milestone.
Triage
One or more of the Thunderbird drivers will regularly triage nominations and other status flags, consulting with other drivers and relevant parties as necessary.
To check the current blocking and wanted bugs for a release, we have a bug tracking page here (NOT YET).
Merge Duty
Happens over 3 weeks and is what drives the release trains. See Merge Duty.
Uplifts
Bugs are fixed in comm-central. When a bug is present in a beta or release version, the procedure for copying that fix to comm-beta or comm-esrXX is called uplifting.
Uplifts are requested in the Details page of a bug attachment (patch). They can be requested by the developer submitting the patch or a release driver. They may be either regular bugzilla attachments or Phabricator review attachments.
See Release Tools for the Bugzilla uplift queries.