I have the same problem as Linode is going to remove support for 1.19 in October. I ask Gitlab support and they said
Currently Kubernetes version 1.20 is not yet supported. However support for version 1.20 is being actively discussed in the following epic/issue:
Based on the above links, it appears that support for Kubernetes 1.20 is tentatively scheduled for GitLab 14.3 which has a release date of September 22, 2021. We would encourage you to consider doing either (or both) of the following:
- React to the issue with a thumbs up (or other) emoji to help us prioritize the issue.
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Prioritization and scheduling will be up to the relevant product manager. If you have any questions, we highly recommend asking on the issue itself as it’s your direct communication line with our product and development teams.