### Deprecation warnings

SIG API Machinery implemented [warnings when using deprecated APIs](https://kubernetes.io/docs/reference/using-api/deprecation-policy/#rest-resources-aka-api-objects)
that are visible to `kubectl` users and API consumers, and metrics visible to cluster administrators.
Requests to a deprecated API are returned with a warning containing a target removal release and any replacement API.

        support and new features.
    *   **API not found.** The new optimizer has a different set of public APIs
        from the old optimizer. These API changes are mostly related to
        getting rid of slot variables and TF1 support. Please check the API
        documentation to find alternatives to the missing API. If you must
        call the deprecated API, please change your optimizer to the legacy
        optimizer.

        in RFC3339 form and is in UTC. Populated by the system. Read-only. Null for
        lists. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#metadata'
      jsonPath: .metadata.creationTimestamp
      name: Age
      type: date
    name: v1alpha1
    schema:
      openAPIV3Schema:
        properties:
          spec:

        in RFC3339 form and is in UTC. Populated by the system. Read-only. Null for
        lists. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#metadata'
      jsonPath: .metadata.creationTimestamp
      name: Age
      type: date
    name: v1alpha1
    schema:
      openAPIV3Schema:
        properties:
          spec:

19AA..19AB    ; valid                                  # 5.2  NEW TAI LUE LETTER HIGH SUA..NEW TAI LUE LETTER LOW SUA
19AC..19AF    ; disallowed                             # NA   <reserved-19AC>..<reserved-19AF>
19B0..19C9    ; valid                                  # 4.1  NEW TAI LUE VOWEL SIGN VOWEL SHORTENER..NEW TAI LUE TONE MARK-2