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Upgrading from v1.1 to v1.2

In an effort to introduce new features whilst keeping the project maintainable, cert-manager now only supports Kubernetes down to version v1.16. This means the legacy manifests have now been removed. Some users experience issues when upgrading the legacy CRDs to v1.2. To solve this, you could replace the CRDs:

  1. Backup cert-manager resources as described in the docs
  2. Run kubectl replace -f to replace the CRDs.
  3. Follow the standard upgrade process. You can read more about supported Kubernetes versions here.

In this release some features have been deprecated. Please read the version 1.2 release notes for more details and consider whether you are using any of these deprecated features before you proceed with the upgrade.

From here on you can follow the regular upgrade process.