Soft code freeze for Firefox 105 starts on August 18

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Donal Meehan

Aug 15, 2022, 8:41:14 AMAug 15

With Firefox 104 in Release Candidate phase this week, we are nearing the end of the Nightly 105 cycle.

In order to avoid invalidating the testing we get out of late Nightly and to ensure that we can roll out Beta 105 to a wider audience with confidence this week, we'd like to ask that any risky changes be avoided from Thursday, August 18 until after the version bump to 106 on August 22.

Also, please be advised that string freeze for Firefox 105 begins Friday, August 19. In order to ensure that our localizers have adequate time to translate strings, please make sure that all string changes have landed by EOD Friday.

Some reminders for the soft code freeze period:

- Be ready to back out patches that cause crash spikes, new crashes, severe regressions
- Monitor new regressions and escalate merge blockers
- Support release management by prioritizing fixing of merge blockers

Do Not:
- Land a risky patch or a large patch
- Land new features (that affect the current Nightly version) — be mindful that code behind NIGHTLY_BUILD or RELEASE_OR_BETA ifdefs can lead to unexpected CI results
- Flip prefs that enable new Features that were untested in the Nightly cycle
- Plan to kick off new experiments that might impact a feature's merge readiness

Please let us know if you have any questions/concerns.

Donal Meehan,
Firefox Release Manager

Ryan VanderMeulen

Aug 18, 2022, 9:22:19 AMAug 18
Just replying to this thread as a reminder that we've now entered the Nightly soft freeze period for 105. Please hold off on landing any further large or risky changes until after Monday's version bump has landed.


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Ryan VanderMeulen

Aug 22, 2022, 10:47:47 AMAug 22
The version bump to 106 has landed on mozilla-central, officially ending the soft freeze period.

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