Today, I was performing a routine update in my Kubernetes cluster and I encountered a unique error in ArgoCD. I thought the update to Cert Manager, from 1.6.1 to 1.7.1 would be a simple one due to SemVer, but a CRD issue stopped me from upgrading.

That issue, while easily fixable if I’d just read the release notes, led me to an interesting journey about CRD deprecations.