Adding a note for zero downtime prior to 10.6
What does this MR do?
Updates the zero downtime documentation to point out /etc/gitlab/skip-auto-reconfigure
was added in 10.6 and that /etc/gitlab/skip-auto-migrations
needs to be used prior to 10.6.
I have personally hit this when upgrading. We have also had customers hit this as well.
Customer ticket -> https://gitlab.zendesk.com/agent/tickets/96471 (internal)