*   Added the concurrent service sync flag to the Cloud Controller Manager to allow changing the number of workers. (`--concurrent-service-syncs`) ([#55561](https://github.com/kubernetes/kubernetes/pull/55561),[ @jhorwit2](https://github.com/jhorwit2))

- Fix a 1.28 regression in scheduler: a pod with concurrent events could incorrectly get moved to the unschedulable queue where it could got stuck until the next periodic purging after 5 minutes if there was no other event for it. ([#120445](https://github.com/kubernetes/kubernetes/pull/120445), [@pohly](https://github.com/pohly)) [SIG Scheduling]

- Azure: fix a bug that kube-controller-manager would panic if wrong Azure VMSS name is configured ([#94306](https://github.com/kubernetes/kubernetes/pull/94306), [@knight42](https://github.com/knight42)) [SIG Cloud Provider]
- Fix a concurrent map writes error in kubelet ([#93773](https://github.com/kubernetes/kubernetes/pull/93773), [@knight42](https://github.com/knight42)) [SIG Node]

### Bug or Regression

- Fix OpenAPI v3 not being cleaned up after deleting APIServices ([#120108](https://github.com/kubernetes/kubernetes/pull/120108), [@tnqn](https://github.com/tnqn)) [SIG API Machinery and Testing]
- Fix a concurrent map access in TopologyCache's `HasPopulatedHints` method. ([#120323](https://github.com/kubernetes/kubernetes/pull/120323), [@Miciah](https://github.com/Miciah)) [SIG Apps and Network]

- Fix a panic in kubectl when creating secrets with an improper output type (#106354, @lauchokyip) [SIG CLI]
- Fix concurrent map access causing panics when logging timed-out API calls. (#106113, @marseel) [SIG API Machinery]
- Fixed very rare volume corruption when a pod is deleted while kubelet is offline.

* Get public IP for Azure vmss nodes. ([#68498](https://github.com/kubernetes/kubernetes/pull/68498), [@feiskyer](https://github.com/feiskyer))
* adjusted http/2 buffer sizes for apiservers to prevent starvation issues between concurrent streams ([#67902](https://github.com/kubernetes/kubernetes/pull/67902), [@liggitt](https://github.com/liggitt))

* fix data loss issue if using existing azure disk with partitions in disk mount  ([#63270](https://github.com/kubernetes/kubernetes/pull/63270), [@andyzhangx](https://github.com/andyzhangx))
* Fixed API server panic during concurrent GET or LIST requests with non-empty `resourceVersion`. ([#65092](https://github.com/kubernetes/kubernetes/pull/65092), [@sttts](https://github.com/sttts))

### Bug or Regression

- EndpointSlice Mirroring controller now cleans up managed EndpointSlices when a Service selector is added (#106136, @robscott) [SIG Apps, Network and Testing]
- Fix concurrent map access causing panics when logging timed-out API calls. (#106124, @marseel) [SIG API Machinery]
- Support more than 100 disk mounts on Windows (#105673, @andyzhangx) [SIG Storage and Windows]

## Dependencies

### Failing Test

- The `TTLAfterFinished` feature gate is now GA and enabled by default. ([#105219](https://github.com/kubernetes/kubernetes/pull/105219), [@sahilvv](https://github.com/sahilvv))
- The `kube-controller-manager` supports `--concurrent-ephemeralvolume-syncs` flag to set the number of ephemeral volume controller workers. ([#102981](https://github.com/kubernetes/kubernetes/pull/102981), [@SataQiu](https://github.com/SataQiu))