* Introduce Alpha field `Immutable` in both Secret and ConfigMap objects to mark their contents as immutable. The implementation is hidden behind feature gate `ImmutableEphemeralVolumes` (currently in Alpha stage). ([#86377](https://github.com/kubernetes/kubernetes/pull/86377), [@wojtek-t](https://github.com/wojtek-t))

- [`KT-64755`](https://youtrack.jetbrains.com/issue/KT-64755) Setup test for CMS GC
- [`KT-66014`](https://youtrack.jetbrains.com/issue/KT-66014) [K/N][Tests] Some testsuites don't test two-stage compilation and lose -language-version flag
- [`KT-64393`](https://youtrack.jetbrains.com/issue/KT-64393) Use Compiler Core test infrastructure for testing serialization diagnostics on Native

PID Limits features are now generally available on both `SupportNodePidsLimit` (node-to-pod PID isolation) and `SupportPodPidsLimit` (ability to limit PIDs per pod), after being enabled-by-default in beta stage for a year.

### API Priority and Fairness graduates to Beta

- Fixed a regression introduced in 1.23.0 where Azure load balancers were not kept up to date with the state of cluster nodes. In particular, nodes that are not in the ready state and are not newly created (i.e. not having the `node.cloudprovider.kubernetes.io/uninitialized` taint) now get removed from Azure load balancers. ([#109932](https://github.com/kubernetes/kubernetes/pull/109932),...

### Bug or Regression

- Fix missing delete events on informer re-lists to ensure all delete events are correctly emitted and using the latest known object state, so that all event handlers and stores always reflect the actual apiserver state as best as possible ([#115899](https://github.com/kubernetes/kubernetes/pull/115899), [@odinuge](https://github.com/odinuge)) [SIG API Machinery]