- The `WaitFor` and `WaitForWithContext` functions in the wait package have now been marked private. Callers should use the equivalent `Poll*` method with a zero duration interval. ([#115116](https://github.com/kubernetes/kubernetes/pull/115116), [@smarterclayton](https://github.com/smarterclayton))

Immutable Secrets and ConfigMaps graduates to GA. This feature allows users to specify that the contents of a particular Secret or ConfigMap is immutable for its object lifetime. For such instances, Kubelet will not watch/poll for changes and therefore reducing apiserver load.

### Structured Logging in Kubelet

- Mark `net.ipv4.ip_unprivileged_port_start` as safe `sysctl`. ([#103326](https://github.com/kubernetes/kubernetes/pull/103326), [@pacoxu](https://github.com/pacoxu))
- Metrics server nanny has now poll period set to 30s (previously 5 minutes) to allow faster scaling of metrics server. ([#101869](https://github.com/kubernetes/kubernetes/pull/101869), [@olagacek](https://github.com/olagacek)) [SIG Cloud Provider and Instrumentation]

  * Add support for Azure internal load balancer ([#43510](https://github.com/kubernetes/kubernetes/pull/43510), [@karataliu](https://github.com/karataliu))

	* Client poll duration is now 5 seconds ([#43699](https://github.com/kubernetes/kubernetes/pull/43699), [@colemickens](https://github.com/colemickens))