- Kubernetes is now built with Go 1.20.10 ([#121153](https://github.com/kubernetes/kubernetes/pull/121153), [@cpanato](https://github.com/cpanato)) [SIG Release and Testing]
- Kubernetes is now built with Go 1.20.9 ([#121025](https://github.com/kubernetes/kubernetes/pull/121025), [@cpanato](https://github.com/cpanato)) [SIG Release and Testing]

### Failing Test

### SIG Big Data

During the 1.13 release cycle, SIG Big Data has been focused on community engagements relating to 3rd-party project integrations with Kubernetes. There have been no impacts on the 1.13 release.

### SIG CLI

- Updated cri-tools to [v1.24.2(https://github.com/kubernetes-sigs/cri-tools/releases/tag/v1.24.2) ([#109813](https://github.com/kubernetes/kubernetes/pull/109813), [@saschagrunert](https://github.com/saschagrunert)) [SIG Cloud Provider, Node and Release]

- VSphere releases less than 7.0u2 are deprecated as of v1.24. Please consider upgrading vSphere to 7.0u2 or above. vSphere CSI Driver requires...

  https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize%2Fv5.0.0 and https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize%2Fv5.0.1. 
  
  This is a new major release of kustomize, so there are a few backwards-incompatible changes, most of which are rare use cases, bug fixes with side effects, or things that have been deprecated for multiple releases already:
  

- `CSINodeExpandSecret` feature has been promoted to `GA` in this release and is enabled
  by default. The CSI drivers can make use of the `secretRef` values passed in `NodeExpansion`
  request optionally sent by the CSI Client from this release onwards. ([#121303](https://github.com/kubernetes/kubernetes/pull/121303), [@humblec](https://github.com/humblec))

- Kubernetes is now built with Go 1.20.10 ([#121151](https://github.com/kubernetes/kubernetes/pull/121151), [@cpanato](https://github.com/cpanato)) [SIG Release and Testing]
- Kubernetes is now built with Go 1.20.9 ([#121023](https://github.com/kubernetes/kubernetes/pull/121023), [@cpanato](https://github.com/cpanato)) [SIG Release and Testing]

### Bug or Regression

Check the [release notes website](https://relnotes.k8s.io/?releaseVersions=1.15.0) for the complete changelog of notable features and fixes.




## Known Issues

- Concurrently joining control-plane nodes does not work as expected in kubeadm 1.15.0. The feature was planned for release in 1.15.0, but a fix may  come in a follow up patch release.

* Updates Fluentd to 1.3.2 & added filter_parser  ([#71180](https://github.com/kubernetes/kubernetes/pull/71180), [@monotek](https://github.com/monotek))
* The leaderelection package allows the lease holder to release its lease when the calling context is cancelled. This allows ([#71490](https://github.com/kubernetes/kubernetes/pull/71490), [@smarterclayton](https://github.com/smarterclayton))

- [`KT-61668`](https://youtrack.jetbrains.com/issue/KT-61668) Put expect/actual diagnostics introduced in 1.9.20 release under 1.9 Language Version
- [`KT-61725`](https://youtrack.jetbrains.com/issue/KT-61725) KMP: Annotation matching requirement for expect/actual leads to errors for annotations with `@OptionalExpectation`