[joshlambert]

Thanks for the additional information. The `git_data_dir` and gitaly configuration changes are indeed why we've started requiring moving to the last minor version first. The 10.x to 11.x upgrade was the first major upgrade with these checks, but it doesn't look like we captured all the possible scenarios. (We did prevent a few upgrade failures though, based on customer feedback.)

It is very important for the team to ensure upgrades are smooth. Right around 50% of our installations are running a version at most 3 months old, and we want to continue to improve that number so everyone can take advantage of the latest fixes, features, and security updates.

The team has opened another issue to explore ways to make it more apparent which version should be upgraded to: https://gitlab.com/gitlab-org/distribution/team-tasks/issues....