We also make a release branch (releases/x.y.z), tag a release candidate in it (x.y.z-RCn), build it, deploy it, wait for a bit (canary stage?), it we did not wa

We also make a release branch (releases/x.y.z), tag a release candidate in it (x.y.z-RCn), build it, deploy it, wait for a bit (canary stage?), it we did not want to rollback: then merge it into master.