8443. If you have AuthorizationPolicie that reference port these ports, you should update them during this process, or customize the ports to match the old defaults. See the [security advisory](https://istio.io/latest/news/security/istio-security-2021-002/) for more information. #### Other migrations If you see errors like `rendered manifests contain a resource that already exists` during installation, you may need to forcibly take ownership. The script below can handle this for you. Replace `RELEASE`...