- Trace output in apiserver logs is more organized and comprehensive. Traces are nested, and for all non-long running request endpoints, the entire filter chain is instrumented (e.g. authentication check is included). ([#88936](https://github.com/kubernetes/kubernetes/pull/88936), [@jpbet...

- Fixed data race in `kube-scheduler` when preemption races with a Pod update. ([#116395](https://github.com/kubernetes/kubernetes/pull/116395), [@alculquicondor](https://github.com/alculquicondor)) [SIG Scheduling]

- The garbage collection controller no longer races with changes to ownerReferences when deleting orphaned objects. ([#132632](https://github.com/kubernetes/kubernetes/pull/132632), [@sdowell](https://github.com/sdowell)) [SIG API Machinery and Apps]

### Other (Cleanup or Flake)

- Resolves issue with `/readyz` and `/livez` not including etcd and kms health checks ([#82713](https://github.com/kubernetes/kubernetes/pull/82713), [@logicalhan](https://github.com/logicalhan))
- Fixes regression in logging spurious stack traces when proxied connections are closed by the backend ([#82588](https://github.com/kubernetes/kubernetes/pull/82588), [@liggitt](https://github.com/liggitt))

- Fixed panic in vSphere e2e tests. ([#115863](https://github.com/kubernetes/kubernetes/pull/115863), [@jsafrane](https://github.com/jsafrane)) [SIG Storage and Testing]

### Bug or Regression

- Fix data race in kube-scheduler when preemption races with a Pod update. ([#116438](https://github.com/kubernetes/kubernetes/pull/116438), [@alculquicondor](https://github.com/alculquicondor)) [SIG Scheduling]

* Fix device mountable volume names in DSW to prevent races in device mountable plugin, e.g. local. ([#71509](https://github.com/kubernetes/kubernetes/pull/71509), [@cofyc](https://github.com/cofyc))

### Bug or Regression

- Fix data race in kube-scheduler when preemption races with a Pod update. ([#116440](https://github.com/kubernetes/kubernetes/pull/116440), [@alculquicondor](https://github.com/alculquicondor)) [SIG Scheduling]

- Decoupled `TaintManager` from `NodeLifeCycleController` (KEP-3902). ([#119208](https://github.com/kubernetes/kubernetes/pull/119208), [@atosatto](https://github.com/atosatto))
- Enabled traces for KMSv2 encrypt/decrypt operations. ([#121095](https://github.com/kubernetes/kubernetes/pull/121095), [@aramase](https://github.com/aramase))

* Added support for network spaces in the kubeapi-load-balancer charm. ([#58708](https://github.com/kubernetes/kubernetes/pull/58708), [@hyperbolic2346](https://github.com/hyperbolic2346))

* fluentd-gcp grace termination period increased to 60s. ([#65084](https://github.com/kubernetes/kubernetes/pull/65084), [@x13n](https://github.com/x13n))
* Pass cluster_location argument to Heapster ([#65176](https://github.com/kubernetes/kubernetes/pull/65176), [@kawych](https://github.com/kawych))