([#123190](https://github.com/kubernetes/kubernetes/pull/123190), [@padlar](https://github.com/padlar))
- Allowed scheduling framework plugins that implement `io.Closer` to be gracefully closed.
   ([#122498](https://github.com/kubernetes/kubernetes/pull/122498), [@Gekko0114](https://github.com/Gekko0114))
- Bumped cAdvisor to `v0.49.0`.

* GCE: provide an option to disable docker's live-restore on COS/ubuntu ([#55260](https://github.com/kubernetes/kubernetes/pull/55260), [@yujuhong](https://github.com/yujuhong))
* Fix kube-proxy hang due to panic when requesting a closed healthcheck. ([#46450](https://github.com/kubernetes/kubernetes/pull/46450), [@MrHohn](https://github.com/MrHohn))

- The Kubernetes API server now correctly detects and closes existing TLS connections when its client certificate file for kubelet authentication has been rotated. ([#115315](https://github.com/kubernetes/kubernetes/pull/115315), [@enj](https://github.com/enj)) [SIG API Machinery, Auth, Node and Testing]

    * This more closely aligns rest client as a generic RESTful client, while preserving the special Kube API extended error handling for the `Get` and `Into` methods (which most Kube clients use).

* The GitRepo volume type is deprecated. To provision a container with a git repo, mount an `EmptyDir` into an `InitContainer` that clones the repo using git, then mount the `EmptyDir` into the Pod's container.
([#63445](https://github.com/kubernetes/kubernetes/pull/63445), [@ericchiang](https://github.com/ericchiang))

- Fixes regression in logging spurious stack traces when proxied connections are closed by the backend ([#82588](https://github.com/kubernetes/kubernetes/pull/82588), [@liggitt](https://github.com/liggitt))

pkg log/syslog (netbsd-arm64-cgo), func New(Priority, string) (*Writer, error)
pkg log/syslog (netbsd-arm64-cgo), method (*Writer) Alert(string) error
pkg log/syslog (netbsd-arm64-cgo), method (*Writer) Close() error
pkg log/syslog (netbsd-arm64-cgo), method (*Writer) Crit(string) error
pkg log/syslog (netbsd-arm64-cgo), method (*Writer) Debug(string) error
pkg log/syslog (netbsd-arm64-cgo), method (*Writer) Emerg(string) error

- Apiserver add a new flag --goaway-chance which is the fraction of requests that will be closed gracefully(GOAWAY) to prevent HTTP/2 clients from getting stuck on a single apiserver. 
  After the connection closed(received GOAWAY), the client's other in-flight requests won't be affected, and the client will reconnect. 

  If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.

    color: $white;\n        background-color: $color;\n        border-color: $color;\n      }\n    }\n  }\n}\n",".close {\n  float: right;\n  @include font-size($close-font-size);\n  font-weight: $close-font-weight;\n  line-height: 1;\n  color: $close-color;\n  text-shadow: $close-text-shadow;\n  opacity: .5;\n\n  // Override <a>'s hover style\n  @include hover() {\n    color: $close-color;\n    text-decoration: none;\n  }\n\n  &:not(:disabled):not(.disabled) {\n    @include hover-focus() {\n   ...