Hello Cinder team, As I mentioned at today's meeting, the cinderclient must be released next week, and this means that any Xena cinder features that we want supported in the Xena cinderclient need to merge into cinder first. We've got two cinder patches that introduce new microversions, and thus impact cinderclient. So please put the following patches at the top of your reviewing list: (1) "Snapshot in-use volumes without force flag" cinder: https://review.opendev.org/c/openstack/cinder/+/789564 cinderclient: (simply requires bump in MAX_VERSION, will be done in the release note patch) (2) "Expose volume & snapshot use_quota field" cinder: https://review.opendev.org/c/openstack/cinder/+/786386 cinderclient: https://review.opendev.org/c/openstack/python-cinderclient/+/787407 (very small patch) A slight complication is that 786386 is stacked on top of some other patches. On the other hand, these are all nicely done and present learning opportunities: - https://review.opendev.org/c/openstack/cinder/+/791240/ -- this is a good one to review if you're interested in how the automated tests to verify the request/response samples in the api-ref work - https://review.opendev.org/c/openstack/cinder/+/786383 -- relatively small patch with great unit test coverage - https://review.opendev.org/c/openstack/cinder/+/786384/ -- this is a good one if you want to get better acquainted with Cinder's use of Oslo Versioned Objects - https://review.opendev.org/c/openstack/cinder/+/786385 -- this is worth looking at to see the online data migration strategy Cinder uses to enable rolling upgrades - https://review.opendev.org/c/openstack/cinder/+/786386 -- this is the patch that introduces a new API microversion; it looks big, but a lot of the files are sample requests/responses for the api-ref Happy reviewing!