* The `meta.k8s.io/v1alpha1` objects for retrieving tabular responses from the server (`Table`) or fetching just the `ObjectMeta` for an object (as `PartialObjectMetadata`) are now beta as part of `meta.k8s.io/v1beta1`.  Clients may request alternate representations of normal Kubernetes objects by passing an `Accept` header like `application/json;as=Table;g=meta.k8s.io;v=v1beta1` or `application/json;as=PartialObjectMetadata;g=meta.k8s.io;v1=v1beta1`....

* Meta data of CustomResources is now pruned and schema checked during deserialization of requests and when read from etcd. In the former case, invalid meta data is rejected, in the later it is dropped from the CustomResource objects. ([#64267](https://github.com/kubernetes/kubernetes/pull/64267), [@sttts](https://github.com/sttts))...

  `container_memory_working_set_bytes`
  `scrape_error`
  ([#84987](https://github.com/kubernetes/kubernetes/pull/84987), [@RainbowMango](https://github.com/RainbowMango))
- Deprecated prometheus request meta-metrics have been removed
 `http_request_duration_microseconds` `http_request_duration_microseconds_sum` `http_request_duration_microseconds_count`
 `http_request_size_bytes`
 `http_request_size_bytes_sum`

    * as the certificates expiration approaches.

- OpenAPI will no longer duplicate these schemas:
  - `io.k8s.apimachinery.pkg.apis.meta.v1.DeleteOptions_v2`
  - `io.k8s.apimachinery.pkg.apis.meta.v1.ObjectMeta_v2`
  - `io.k8s.apimachinery.pkg.apis.meta.v1.OwnerReference_v2`
  - `io.k8s.apimachinery.pkg.apis.meta.v1.StatusDetails_v2`

- Expose a `NewUnstructuredExtractor` from apply configurations `meta/v1` package that enables extracting objects into unstructured apply configurations. ([#103564](https://github.com/kubernetes/kubernetes/pull/103564), [@kevindelgado](https://github.com/kevindelgado))

- Fix k8s.io/apimachinery/pkg/api/meta.SetStatusCondition to update ObservedGeneration ([#95961](https://github.com/kubernetes/kubernetes/pull/95961), [@KnicKnic](https://github.com/KnicKnic)) [SIG API Machinery]

the metadata (the `metadata` sub-section) from resources on the cluster in an efficient manner for use cases that deal with objects generically, like the garbage collector, quota, or the namespace controller. The client asks the server to return a `meta.k8s.io/v1 PartialObjectMetadata` object for list, get, delete, watch, and patch operations on both normal APIs and custom resources which can be encoded in protobuf for additional work. If the server does not yet support this API the client will gracefully...

38), [@fabianofranz](https://github.com/fabianofranz))

* [alpha] The Kubernetes API supports retrieving tabular output for API resources via a new mime-type application/json;as=Table;v=v1alpha1;g=meta.k8s.io. The returned object (if the server supports it) will be of type meta.k8s.io/v1alpha1 with Table, and contain column and row information related to the resource. Each row will contain information about the resource - by default it will be the object metadata, but callers can add...

- The errors in `k8s.io/apimachinery/pkg/api/meta` now support for the `stdlibs` `errors.Is` matching, including when wrapped. ([#111808](https://github.com/kubernetes/kubernetes/pull/111808), [@alvaroaleman](https://github.com/alvaroaleman))