<div dir="ltr"><div id="gmail-magicdomid337" class="gmail-ace-line"><span class="gmail-author-a-jz65zz73zhotiroz74zj49rqz65z">Hi all,</span></div><div id="gmail-magicdomid85" class="gmail-ace-line"><br></div><div id="gmail-magicdomid543" class="gmail-ace-line"><span class="gmail-author-a-z76zst1z122z28m6jrfrz85zz69zj">O</span><span class="gmail-author-a-jz65zz73zhotiroz74zj49rqz65z">n March 1st, we will be merging Firefox 60 from mozilla-central to beta for the first time.  In order to avoid invalidating the testing we get out of nightly and the early Developer Edition builds and </span><span class="gmail-author-a-z76zst1z122z28m6jrfrz85zz69zj">to en</span><span class="gmail-author-a-jz65zz73zhotiroz74zj49rqz65z">sure </span><span class="gmail-author-a-z76zst1z122z28m6jrfrz85zz69zj">that </span><span class="gmail-author-a-jz65zz73zhotiroz74zj49rqz65z">we can roll out beta60 with confidence, we'd like to ask that any risky changes be avoided from March 1st until the version bump to 61 on March 12.</span></div><div id="gmail-magicdomid406" class="gmail-ace-line"><br></div><div id="gmail-magicdomid423" class="gmail-ace-line"><span class="gmail-author-a-jz65zz73zhotiroz74zj49rqz65z">Dos and Don'ts during the soft code freeze:</span></div><div id="gmail-magicdomid408" class="gmail-ace-line"><span class="gmail-author-a-jz65zz73zhotiroz74zj49rqz65z">Do:</span></div><div id="gmail-magicdomid409" class="gmail-ace-line"><ul class="gmail-list-bullet2"><li><span class="gmail-author-a-jz65zz73zhotiroz74zj49rqz65z">Be ready to backout patches that cause crash spikes, new crashes, severe regressions</span></li></ul></div><div id="gmail-magicdomid410" class="gmail-ace-line"><ul class="gmail-list-bullet2"><li><span class="gmail-author-a-jz65zz73zhotiroz74zj49rqz65z">Monitor new regressions and escalate merge blockers</span></li></ul></div><div id="gmail-magicdomid411" class="gmail-ace-line"><ul class="gmail-list-bullet2"><li><span class="gmail-author-a-jz65zz73zhotiroz74zj49rqz65z">Support release management by prioritizing fixing of merge blockers</span></li></ul></div><div id="gmail-magicdomid412" class="gmail-ace-line"><span class="gmail-author-a-jz65zz73zhotiroz74zj49rqz65z">Do Not:</span></div><div id="gmail-magicdomid569" class="gmail-ace-line"><ul class="gmail-list-bullet2"><li><span class="gmail-author-a-jz65zz73zhotiroz74zj49rqz65z">Land a risky patch or a large patch</span></li></ul></div><div id="gmail-magicdomid570" class="gmail-ace-line"><ul class="gmail-list-bullet2"><li><span class="gmail-author-a-jz65zz73zhotiroz74zj49rqz65z">Land new features (that affects the current nightly version)</span><span class="gmail-author-a-z76zst1z122z28m6jrfrz85zz69zj"> — be mindful that code behind NIGHTLY_BUILD or RELEASE_OR_BETA ifdefs can lead to unexpected CI results</span></li></ul></div><div id="gmail-magicdomid571" class="gmail-ace-line"><ul class="gmail-list-bullet2"><li><span class="gmail-author-a-jz65zz73zhotiroz74zj49rqz65z">Flip prefs that enable new Features that were untested in Nightly cycle</span></li></ul></div><div id="gmail-magicdomid572" class="gmail-ace-line"><ul class="gmail-list-bullet2"><li><span class="gmail-author-a-jz65zz73zhotiroz74zj49rqz65z">Plan to kick off new experiments that might impact a feature's merge readiness</span></li></ul></div><div id="gmail-magicdomid444" class="gmail-ace-line"><br></div><div id="gmail-magicdomid417" class="gmail-ace-line"><span class="gmail-author-a-jz65zz73zhotiroz74zj49rqz65z">Please let us know if you have any questions/concerns.</span></div><div id="gmail-magicdomid445" class="gmail-ace-line"><br></div><div id="gmail-magicdomid418" class="gmail-ace-line"><span class="gmail-author-a-jz65zz73zhotiroz74zj49rqz65z">Thanks,</span></div><div id="gmail-magicdomid419" class="gmail-ace-line"><span class="gmail-author-a-jz65zz73zhotiroz74zj49rqz65z">Release management team</span></div></div>