Upgrade From 9.5.2

I have an upgrade process question. I have an old sameersbn/gitlab instance running 9.5.2. I know this is now several years behind.

I want to upgrade it to current code. When I first looked at the sameersbn/gitlab documentation, it seemed to say that a direct jump may be possible as long as I upgrade PostgreSQL to a later version. Specifically, the documentation says:

"Upgrading to sameersbn/gitlab:15.4.0 from sameersbn/gitlab:7.x.x can cause issues. It is therefore required that you first upgrade to sameersbn/gitlab:8.0.5-1 before upgrading to sameersbn/gitlab:8.1.0 or higher."

It also discusses the required PostgreSQL upgrade and prerequisites.

Other issues and comments seem to indicate that I need to follow the published Gitlab version upgrade sequence. To get from 9.5.2 to the current version would involve 15 or more steps. I could start that process, but it seems there are no sameersbn/gitlab versions still available for some of those releases.

Is there a recommendation for how to catch up from a release several years old?

If there is a better place for me to ask this question, please let me know and I will be happy to move the discussion there.

Help from anyone will be appreciated.

The issue names the published upgrade sequence, sameersbn/gitlab image versions, and PostgreSQL prerequisites, but no repository file or test. Start by reviewing the existing upgrade documentation and available image tags; done would be a documented, supported path from 9.5.2 to the current release, including unavailable intermediate versions.