FYI:

Georg

-------- Forwarded Message -------- Subject: [Mozilla Enterprise] Moving Firefox to a faster 4-week release cycle! Date: Fri, 20 Sep 2019 13:16:53 -0700 From: Ritu Kothari rkothari@mozilla.com To: enterprise@mozilla.org

We’re excited to announce https://hacks.mozilla.org/2019/09/moving-firefox-to-a-faster-4-week-release-cycle/ that we’re adjusting Firefox release cadence to increase our agility, and to bring you new features more quickly. Starting Q1 2020, we plan to ship a major Firefox release every 4 weeks.

Shorter release cycles provide greater flexibility to support product planning and priority changes due to business or market requirements. It allows us to be more agile and ship features faster while applying the same rigor and due diligence needed to ship a high-quality and stable release. *Major updates to ESR* (Extended Support Release https://www.mozilla.org/en-US/firefox/enterprise/ for the enterprise) *will remain yearly, as they do now*. There will be a 3 months support overlap between new ESR and end-of-life of previous ESR version. The next two major ESR releases will be ~June 2020 and ~June 2021. This change will be deployed gradually starting with Fx71, achieving 4 week release cadence by Q1 2020. You can refer to https://wiki.mozilla.org/Release_Management/Calendar for the latest release dates and other information.

As we slowly reduce our release cycle length, from 7 weeks down to 6, 5, 4 weeks, there will be close monitoring of aspects like release scope change; developer productivity impact (tree closure, build failures); beta code churn (uplifts, new regressions); overall release stabilization and quality (stability, performance, carryover regressions). Our main goal is to identify bottlenecks that prevent us from being more agile in our release cadence. Appropriate mitigations will be put in place should our metrics highlight an unexpected trend.

If you have any questions or concerns, please email release-mgmt@mozilla.com

Thanks,

Ritu Kothari