Cinder currently has nine (9) branches open, which is a lot. (See [0] for a graphical representation.) We'd like to close some. In release chronological order, the eight stable branches are: 1. driverfixes/mitaka 2. driverfixes/newton The above pre-date the OpenStack-wide extended maintenance phase [1] for stable branches; they were created after mitaka and newton went EOL so that there'd be a place where operators could get backported fixes for Cinder drivers only. 3. stable/ocata 4. stable/pike 5. stable/queens The above are currently in the extended maintenance phase. Vulnerability Management is done on a reasonable effort basis only, and there's no official statement of level of testing (could be extremely limited). This phase also means that there are no longer any official releases of these branches. So like driverfixes, any bug fixes merged must be picked up and applied by someone downstream. 6. stable/rocky 7. stable/stein 8. stable/train The above are in the 'maintained' phase [2] and not really the subject of this email (they're just listed for completeness). Ok, so here's what the Cinder team would like to know. 1. We're assuming that no one is using driverfixes/mitaka anymore and would like to kill it. Are we correct? 2. Is anyone still relying upon driverfixes/newton? It contains 98 commits after the 9.1.4 tag (the final Cinder Newton release), so it's been getting a lot of love from the team. This is a key issue, because if we keep this branch open, the OpenStack stable branch "appropriate fixes" policy (point #4) implies that we must keep stable ocata, pike, and queens open as well. 3. As far as the Extended Maintenance branches go, it seems that ocata and pike could go EOL. At the very least, we may need to reduce the gate coverage on stable/ocata as there are rumors that it doesn't play nice with Zuul v3. Is anyone relying on stable/ocata or stable/pike ? Thank you for your attention to this matter. I should mention that the Cinder team doesn't mind keeping branches open (as you can see by the number of commits into driverfixes/newton), we just want to make sure they're being used so we can allocate our resources efficiently. It would be really helpful if you could respond before November 1 (that is, before the end of this week) so we can make a decision at the PTG. [0] https://launchpad.net/cinder/+series [1] https://docs.openstack.org/project-team-guide/stable-branches.html#extended-... [2] https://docs.openstack.org/project-team-guide/stable-branches.html#maintaine... [3] https://docs.openstack.org/project-team-guide/stable-branches.html#appropria...