- The JWT authenticator configuration set via the `--authentication-config` flag is now dynamically reloaded as the file changes on disk. ([#123525](https://github.com/kubernetes/kubernetes/pull/123525), [@enj](https://github.com/enj))

- No-op and GC related updates to cluster trust bundles no longer require attest authorization when the `ClusterTrustBundleAttest` plugin is enabled. ([#120779](https://github.com/kubernetes/kubernetes/pull/120779), [@enj](https://github.com/enj))

- Kube-controller-manager: the `horizontal-pod-autoscaler-upscale-delay` and `horizontal-pod-autoscaler-downscale-delay` flags have been removed (deprecated and non-functional since v1.12). ([#124948]...

- Removed the `KMSv2` and `KMSv2KDF` feature gates. The associated features graduated to stable in the Kubernetes v1.29 release. ([#126698](https://github.com/kubernetes/kubernetes/pull/126698), [@enj](https://github.com/enj)) [SIG API Machinery, Auth and Testing]
- Short circuit if the compaction request from apiserver is disabled. ([#126627](https://github.com/kubernetes/kubernetes/pull/126627), [@fusida](https://github.com/fusida)) [SIG Etcd]

- Fix 1.28.0 regression where adding aggregated APIService objects could cause apiserver to panic and affect the health check ([#121040](https://github.com/kubernetes/kubernetes/pull/121040), [@Jefftree](http...