Initially introduced in 1.18, Kubernetes 1.20 now enables API Priority and Fairness (APF) by default. This allows `kube-apiserver` to [categorize incoming requests by priority levels](https://docs.k8s.io/concepts/cluster-administration/flow-control/).

### IPv4/IPv6 run

- k8s.io/utils: da69540 → 4b05e18
- sigs.k8s.io/apiserver-network-proxy/konnectivity-client: v0.0.20 → v0.0.21
- sigs.k8s.io/kustomize/api: v0.8.10 → v0.8.11
- sigs.k8s.io/kustomize/cmd/config: v0.9.12 → v0.9.13
- sigs.k8s.io/kustomize/kustomize/v4: v4.1.3 → v4.2.0
- sigs.k8s.io/kustomize/kyaml: v0.10.20 → v0.11.0
- sigs.k8s.io/structured-merge-diff/v4: v4.1.1 → v4.1.2

### Removed

- [v1.10.0-rc.1](#v1100-rc1)
  - [Downloads for v1.10.0-rc.1](#downloads-for-v1100-rc1)
    - [Client Binaries](#client-binaries-14)
    - [Server Binaries](#server-binaries-14)
    - [Node Binaries](#node-binaries-14)
  - [Changelog since v1.10.0-beta.4](#changelog-since-v1100-beta4)
    - [Other notable changes](#other-notable-changes-14)
- [v1.10.0-beta.4](#v1100-beta4)

- golang.org/x/crypto: v0.11.0 → v0.12.0
- golang.org/x/mod: v0.10.0 → v0.12.0
- golang.org/x/net: v0.13.0 → v0.14.0
- golang.org/x/sync: v0.2.0 → v0.3.0
- golang.org/x/sys: v0.10.0 → v0.12.0
- golang.org/x/term: v0.10.0 → v0.11.0
- golang.org/x/text: v0.11.0 → v0.12.0
- golang.org/x/tools: v0.8.0 → v0.12.0

### Removed
_Nothing has changed._

ction(e,a){return 12===e&&(e=0),"\u51cc\u6668"===a||"\u65e9\u4e0a"===a||"\u4e0a\u5348"===a?e:"\u4e2d\u5348"===a?11<=e?e:e+12:"\u4e0b\u5348"===a||"\u665a\u4e0a"===a?e+12:void 0},meridiem:function(e,a,t){var s=100*e+a;return s<600?"\u51cc\u6668":s<900?"\u65e9\u4e0a":s<1200?"\u4e0a\u5348":1200===s?"\u4e2d\u5348":s<1800?"\u4e0b\u5348":"\u665a\u4e0a"},calendar:{sameDay:"[\u4eca\u5929]LT",nextDay:"[\u660e\u5929]LT",nextWeek:"[\u4e0b]ddddLT",lastDay:"[\u6628\u5929]LT",lastWeek:"[\u4e0a]ddddLT",sameElse...

### API Change

<!-- END MUNGE: GENERATED_TOC -->

# v1.18.20


## Downloads for v1.18.20

### Source Code

filename | sha512 hash
-------- | -----------
[kubernetes.tar.gz](https://dl.k8s.io/v1.18.20/kubernetes.tar.gz) | 27832e96511cddd06195e60efaf67f6482c7ee676d27ac5140f6ba9811c65a660a783c1e36ebee709c4b09a2b9169ead7953a032560b9648751f3a98559d13e5

- github.com/coredns/corefile-migration: [v1.0.17 → v1.0.20](https://github.com/coredns/corefile-migration/compare/v1.0.17...v1.0.20)
- github.com/coreos/go-systemd/v22: [v22.3.2 → v22.4.0](https://github.com/coreos/go-systemd/v22/compare/v22.3.2...v22.4.0)
- github.com/creack/pty: [v1.1.11 → v1.1.18](https://github.com/creack/pty/compare/v1.1.11...v1.1.18)

- The maximum number of ports allowed in EndpointSlices has been increased from 100 to 20,000 ([#99795](https://github.com/kubernetes/kubernetes/pull/99795), [@robs...

* Introduced `--http2-max-streams-per-connection` command line flag on api-servers and set default to 1000 for aggregated API servers. ([#60054](https://github.com/kubernetes/kubernetes/pull/60054), [@MikeSpreitzer](https://github.com/MikeSpreitzer))