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<p>Hi all,<br>
<br>
With Firefox 85 RC shipping soon, we are nearing the end of the
Nightly 86 cycle.<br>
<br>
In order to avoid invalidating the testing we get out of late
Nightly and to ensure that we can roll out Beta 86 to a wider
audience with confidence, we'd like to ask that any risky changes
be avoided from Thursday January 21 until after the version bump
to 87 on January 25.<br>
<br>
Some reminders for the soft code freeze period:<br>
<br>
Do:<br>
- Be ready to back out patches that cause crash spikes, new
crashes, severe regressions<br>
- Monitor new regressions and escalate merge blockers<br>
- Support release management by prioritizing fixing of merge
blockers<br>
<br>
Do Not:<br>
- Land a risky patch or a large patch<br>
- 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<br>
- Flip prefs that enable new Features that were untested in the
Nightly cycle<br>
- Plan to kick off new experiments that might impact a feature's
merge readiness<br>
<br>
Please let us know if you have any questions/concerns.<br>
<br>
Thanks,<br>
Pascal & the Release Management team<br>
</p>
<pre class="moz-signature" cols="72">--
Pascal Chevrel
Firefox Release Manager
+ Firefox Nightly community management</pre>
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