* Fix incorrect retry logic in scheduler ([#50106](https://github.com/kubernetes/kubernetes/pull/50106), [@julia-stripe](https://github.com/julia-stripe))

* Fix incorrect retry logic in scheduler ([#50106](https://github.com/kubernetes/kubernetes/pull/50106), [@julia-stripe](https://github.com/julia-stripe))
* Enforce explicit references to API group client interfaces in clientsets to avoid ambiguity. ([#49370](https://github.com/kubernetes/kubernetes/pull/49370), [@sttts](https://github.com/sttts))

- We’re working to simplify the Windows node join experience with better scripts and kubeadm. Scripts and doc updates are still in the works, but some of the needed improvements are included in 1.15.  These include:

    - [RBAC](#rbac-1)
    - [Scheduling](#scheduling-1)
    - [Service Catalog](#service-catalog)
    - [Volumes](#volumes-1)
  - [Deprecations](#deprecations)
    - [Cluster Provisioning Scripts](#cluster-provisioning-scripts)
    - [kubeadm](#kubeadm-1)
    - [Other Deprecations](#other-deprecations)
  - [Changes to API Resources](#changes-to-api-resources)
    - [ABAC](#abac)
    - [Admission Control](#admission-control)

* Validate that cronjob names are 52 characters or less ([#52733](https://github.com/kubernetes/kubernetes/pull/52733), [@julia-stripe](https://github.com/julia-stripe))
* add readme file of ipvs ([#51937](https://github.com/kubernetes/kubernetes/pull/51937), [@Lion-Wei](https://github.com/Lion-Wei))



# v1.9.0-alpha.1

- Fixed a bug where CEL expressions in CRD validation rules would incorrectly compute a high estimated cost for functions that return strings, lists or maps.

### Other (Cleanup or Flake)

- Bump distroless-iptables to 0.2.8 based on Go 1.20.11 ([#121975](https://github.com/kubernetes/kubernetes/pull/121975), [@cpanato](https://github.com/cpanato)) [SIG Testing]
- Makefile and scripts now respect GOTOOLCHAIN and otherwise ensure ./.go-version is used ([#122076](https://github.com/kubernetes/kubernetes/pull/122076), [@BenTheElder](https://github.com/BenTheElder)) [SIG Release and Testing]

## Dependencies

- Updated defaultbackend image to 1.5. Users should concentrate on updating scripts to the new version. ([#69120](https://github.com/kubernetes/kubernetes/pull/69120), [@aledbf](https://github.com/aledbf))

Invocations using `kubectl alpha debug` are now deprecated and will be removed in a subsequent release. Update your scripts to use `kubectl debug` instead of `kubectl alpha debug`!

    * enforces  kubeadm  upgrading kubernetes from the same major and minor versions as the kubeadm binary.
* Bugfix allowing use of IP-aliases with custom-mode network in GCE setup scripts. ([#62172](https://github.com/kubernetes/kubernetes/pull/62172), [@shyamjvs](https://github.com/shyamjvs))