- Changed how the API server handles updates to `.spec.defaultBackend` of Ingress objects.

- Pods which have an invalid negative `spec.terminationGracePeriodSeconds` value will be treated as having terminationGracePeriodSeconds of 1 ([#115606](https://github.com/kubernetes/kubernetes/pull/115606), [@wzshiming](https://github.com/wzshiming)) [SIG Apps, Node and Testing]

**/types.generated.go linguist-generated=true
**/generated.pb.go linguist-generated=true
**/generated.proto
**/types_swagger_doc_generated.go linguist-generated=true
api/openapi-spec/*.json linguist-generated=true
api/openapi-spec/**/*.json linguist-generated=true

- github.com/opencontainers/image-spec: [v1.0.2 → v1.1.0](https://github.com/opencontainers/image-spec/compare/v1.0.2...v1.1.0)
- github.com/opencontainers/runc: [v1.1.13 → v1.1.14](https://github.com/opencontainers/runc/compare/v1.1.13...v1.1.14)
- github.com/opencontainers/runtime-spec: [494a5a6 → v1.2.0](https://github.com/opencontainers/runtime-spec/compare/494a5a6...v1.2.0)

- Setting the `status.loadBalancer` of a Service whose `spec.type` is not `LoadBalancer` was previously allowed, but any update to the `metadata` or `spec` would wipe that field. Setting this field is no longer permitted unless `spec.type` is  `LoadBalancer`.  In the very unlikely event that this has unexpected impact, you can enable the `AllowServiceLBStatusOnNonLB` feature gate, which will restore...

- When using `kubectl replace` (or the equivalent API call) on a Service, the caller no longer needs to do a read-modify-write cycle to fetch the allocated values for `.spec.clusterIP` and `.spec.ports[].nodePort`.  Instead the API server will automatically carry these forward from the original object when the new object does not specify them. ([#104672](https://github.com/kubernetes/kubernetes/pull/104672), [@thockin](https://github.com/thockin))...

- The `CSIDriver.Spec.StorageCapacity` can now be modified. ([#101789](https://github.com/kubernetes/kubernetes/pull/101789), [@pohly](https://github.com/pohly))
- The `CSIVolumeFSGroupPolicy` feature has moved from beta to GA. ([#105940](https://github.com/kubernetes/kubernetes/pull/105940), [@dobsonj](https://github.com/dobsonj))

- Introduce support for CEL optionals (see [CEL spec proposal 246](https://github.com/google/cel-spec/wiki/proposal-246)).
  This feature will not be fully enabled until a future Kubernetes release (likely to be v1.29), but is added in v1.28 to enable

- github.com/cncf/xds/go: [fbca930 → cb28da3](https://github.com/cncf/xds/go/compare/fbca930...cb28da3)
- github.com/container-storage-interface/spec: [v1.5.0 → v1.6.0](https://github.com/container-storage-interface/spec/compare/v1.5.0...v1.6.0)
- github.com/containerd/containerd: [v1.4.12 → v1.4.9](https://github.com/containerd/containerd/compare/v1.4.12...v1.4.9)

## Changelog since v1.26.2

## Changes by Kind

### API Change

- Volumes: `resource.claims` gets cleared for PVC specs during create or update of a pod spec with inline PVC template or of a PVC because it has no effect. ([#115928](https://github.com/kubernetes/kubernetes/pull/115928), [@pohly](https://github.com/pohly)) [SIG API Machinery, Apps and Storage]

### Feature