Bug 40820: Prepare stable release 12.0.6

Merge Info

Related Issues

• #40820 (closed)
• etc

Backport Timeline

• Immediate - patchsets for critical bug fixes or other major blocker (e.g. fixes for a 0-day exploit) OR patchsets with trivial changes which do not need testing (e.g. fixes for typos or fixes easily verified in a local developer build)
• Next Minor Stable Release - patchset that needs to be verified in nightly before backport
• Eventually - patchset that needs to be verified in alpha before backport
• No Backport - patchset for the next major stable

Issue Tracking

• Link resolved issues with appropriate Release Prep issue for changelog generation

Change Description

12.0.6 release preparation.

At the moment, it uses -build1, but if Android updates are coming we might need to switch to -build2.