- In CRD webhook conversion, Kubernetes will now ignore changes to metadata other than for labels and annotations. ([#77743](https://github.com/kubernetes/kubernetes/pull/77743), [@sttts](https://github.com/sttts))

- The resource/v1alpha3.ResourceSliceList filed which should have been named "metadata" but was instead named "listMeta" is now properly "metadata". ([#126749](https://github.com/kubernetes/kubernetes/pull/126749), [@thockin](https://github.com/thockin)) [SIG API Machinery]

        // List data
        List<String> list = new ArrayList<>();
        list.add("item1");
        list.add("item2");
        TestAccessResultData<String> listData = new TestAccessResultData<>(list.toString().getBytes());
        Object retrievedList = testTransformer.getData(listData);
        assertEquals(list.toString(), retrievedList);

        // Null data
        TestAccessResultData<Object> nullData = new TestAccessResultData<>();

### API Change

- The resource/v1alpha3.ResourceSliceList filed which should have been named "metadata" but was instead named "listMeta" is now properly "metadata". ([#126761](https://github.com/kubernetes/kubernetes/pull/126761), [@thockin](https://github.com/thockin)) [SIG API Machinery]

### Feature

- Kube-apiserver: openapi schemas published for custom resources now reference standard ListMeta schema definitions ([#92546](https://github.com/kubernetes/kubernetes/pull/92546), [@liggitt](https://github.com/liggitt)) [SIG API Machinery]