* Removed comments in json config when using kubectl edit with -o json ([#31685](https://github.com/kubernetes/kubernetes/pull/31685), [@jellonek](https://github.com/jellonek))
* fixes invalid null selector issue in sysdig example yaml ([#31393](https://github.com/kubernetes/kubernetes/pull/31393), [@baldwinSPC](https://github.com/baldwinSPC))

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- Kubeadm: now sets the host `OS` environment variables when executing `crictl` during image pulls. This fixed a bug where `*PROXY` environment variables did not affect `crictl` internet connectivity. ([#110134](https://github.com/kubernetes/kubernetes/pull/110134), [@mk46](https://github.com/mk46))

- Kube-apiserver: Fixes handling of CRD schemas containing literal null values in enums. ([#104969](https://github.com/kubernetes/kubernetes/pull/104969), [@liggitt](https://github.com/liggitt))

pkg os, func UserConfigDir() (string, error)
pkg os, method (*LinkError) Unwrap() error
pkg os, method (*PathError) Unwrap() error
pkg os, method (*SyscallError) Unwrap() error
pkg os (netbsd-arm64-cgo), const DevNull = "/dev/null"
pkg os (netbsd-arm64-cgo), const O_APPEND = 8
pkg os (netbsd-arm64-cgo), const O_CREATE = 512
pkg os (netbsd-arm64-cgo), const O_EXCL = 2048
pkg os (netbsd-arm64-cgo), const O_SYNC = 128

pkg log/syslog (freebsd-arm64-cgo), type Writer struct
pkg math/bits (freebsd-arm64), const UintSize = 64
pkg math/bits (freebsd-arm64-cgo), const UintSize = 64
pkg os (freebsd-arm64), const DevNull = "/dev/null"
pkg os (freebsd-arm64), const O_APPEND = 8
pkg os (freebsd-arm64), const O_CREATE = 512
pkg os (freebsd-arm64), const O_EXCL = 2048
pkg os (freebsd-arm64), const O_SYNC = 128
pkg os (freebsd-arm64), const O_TRUNC = 1024

pkg log/syslog (darwin-arm64-cgo), type Writer struct
pkg math/bits (darwin-arm64), const UintSize = 64
pkg math/bits (darwin-arm64-cgo), const UintSize = 64
pkg os (darwin-arm64), const DevNull = "/dev/null"
pkg os (darwin-arm64), const O_APPEND = 8
pkg os (darwin-arm64), const O_CREATE = 512
pkg os (darwin-arm64), const O_EXCL = 2048
pkg os (darwin-arm64), const O_SYNC = 128
pkg os (darwin-arm64), const O_TRUNC = 1024

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## Changelog since v1.21.5

## Changes by Kind

### API Change

- Kube-apiserver: Fixes handling of CRD schemas containing literal null values in enums (#104989, @liggitt) [SIG API Machinery, Apps and Network]

### Feature

- Kubernetes is now built with Golang 1.16.9 (#105672, @cpanato) [SIG Cloud Provider, Instrumentation, Release and Testing]

pkg math/bits (freebsd-riscv64), const UintSize = 64 #53466
pkg math/bits (freebsd-riscv64-cgo), const UintSize = 64 #53466
pkg os (freebsd-riscv64), const DevNull = "/dev/null" #53466
pkg os (freebsd-riscv64), const O_APPEND = 8 #53466
pkg os (freebsd-riscv64), const O_CREATE = 512 #53466
pkg os (freebsd-riscv64), const O_EXCL = 2048 #53466
pkg os (freebsd-riscv64), const O_SYNC = 128 #53466