- [Removed](#removed-15)
- [v1.26.0-rc.1](#v1260-rc1)
  - [Downloads for v1.26.0-rc.1](#downloads-for-v1260-rc1)
    - [Source Code](#source-code-16)
    - [Client Binaries](#client-binaries-16)
    - [Server Binaries](#server-binaries-16)
    - [Node Binaries](#node-binaries-16)
    - [Container Images](#container-images-16)
  - [Changelog since v1.26.0-rc.0](#changelog-since-v1260-rc0)

## Changelog since v1.26.0

## Known Issues

### The PreEnqueue extension point doesn't work for Pods going to activeQ through backoffQ

In v1.26.0, we've found the bug that the PreEnqueue extension point doesn't work for Pods going to activeQ through backoffQ. 

- github.com/pelletier/go-toml: [v1.2.0 → v1.9.3](https://github.com/pelletier/go-toml/compare/v1.2.0...v1.9.3)
- github.com/prometheus/common: [v0.26.0 → v0.28.0](https://github.com/prometheus/common/compare/v0.26.0...v0.28.0)
- github.com/spf13/afero: [v1.2.2 → v1.6.0](https://github.com/spf13/afero/compare/v1.2.2...v1.6.0)

- github.com/prometheus/client_golang: [v1.7.1 → v1.11.0](https://github.com/prometheus/client_golang/compare/v1.7.1...v1.11.0)
- github.com/prometheus/common: [v0.10.0 → v0.26.0](https://github.com/prometheus/common/compare/v0.10.0...v0.26.0)
- github.com/prometheus/procfs: [v0.2.0 → v0.6.0](https://github.com/prometheus/procfs/compare/v0.2.0...v0.6.0)

pkg syscall (darwin-arm64), const SYS_MSGRCV ideal-int
pkg syscall (darwin-arm64), const SYS_MSGRCV_NOCANCEL = 419
pkg syscall (darwin-arm64), const SYS_MSGRCV_NOCANCEL ideal-int
pkg syscall (darwin-arm64), const SYS_MSGSND = 260
pkg syscall (darwin-arm64), const SYS_MSGSND ideal-int
pkg syscall (darwin-arm64), const SYS_MSGSND_NOCANCEL = 418
pkg syscall (darwin-arm64), const SYS_MSGSND_NOCANCEL ideal-int

- github.com/opencontainers/runc: [v1.1.10 → v1.1.12](https://github.com/opencontainers/runc/compare/v1.1.10...v1.1.12)
- go.uber.org/atomic: v1.10.0 → v1.7.0
- go.uber.org/goleak: v1.2.1 → v1.3.0
- go.uber.org/zap: v1.19.0 → v1.26.0
- golang.org/x/crypto: v0.14.0 → v0.21.0
- golang.org/x/mod: v0.12.0 → v0.15.0
- golang.org/x/net: v0.17.0 → v0.23.0
- golang.org/x/sync: v0.3.0 → v0.6.0
- golang.org/x/sys: v0.13.0 → v0.18.0

- golang.org/x/crypto: v0.21.0 → v0.24.0
- golang.org/x/exp: a9213ee → f3d0a9c
- golang.org/x/lint: 6edffad → 1621716
- golang.org/x/mod: v0.15.0 → v0.17.0
- golang.org/x/net: v0.23.0 → v0.26.0
- golang.org/x/oauth2: v0.10.0 → v0.21.0
- golang.org/x/sync: v0.6.0 → v0.7.0
- golang.org/x/sys: v0.18.0 → v0.21.0
- golang.org/x/telemetry: b75ee88 → f48c80b
- golang.org/x/term: v0.18.0 → v0.21.0

- github.com/sirupsen/logrus: [v1.7.0 → v1.8.1](https://github.com/sirupsen/logrus/compare/v1.7.0...v1.8.1)
- google.golang.org/protobuf: v1.25.0 → v1.26.0

### Removed
- github.com/willf/bitset: [v1.1.11](https://github.com/willf/bitset/tree/v1.1.11)



# v1.21.4


## Downloads for v1.21.4

### Source Code

**Affected Versions**:
  - kube-apiserver v1.27.0 - v1.27.2
  - kube-apiserver v1.26.0 - v1.26.5
  - kube-apiserver v1.25.0 - v1.25.10
  - kube-apiserver <= v1.24.14

**Fixed Versions**:
  - kube-apiserver v1.27.3
  - kube-apiserver v1.26.6
  - kube-apiserver v1.25.11

## Changes by Kind

### API Change

- Aggregated discovery now returns `responseKind: {}` for resources which are missing group/version/kind information, to ensure compatibility with v0.26.0-v0.26.3 clients. ([#119835](https://github.com/kubernetes/kubernetes/pull/119835), [@liggitt](https://github.com/liggitt)) [SIG API Machinery and Testing]