Updated Plugin Mechanism for kubectl is Graduating to Stable ([#579](https://github.com/kubernetes/enhancements/issues/579))

- Extends functionality to kubectl to support extensions adding new commands as well as overriding specific subcommands (at any depth).
- Documentation fixes

* Fix Heapster configuration and Metrics Server configuration to enable overriding default resource requirements. ([#56965](https://github.com/kubernetes/kubernetes/pull/56965), [@kawych](https://github.com/kawych))



# v1.9.0

- Bump klog to v2.9.0, fixing log lines that render as byte arrays (#105407, @ehashman) [SIG Architecture, CLI, Cloud Provider, Cluster Lifecycle, Instrumentation and Storage]
- Fix overriding logs files on reboot. (#105614, @rphillips) [SIG Node]
- Fix winkernel kube-proxy to only use dual stack when host and networking supports it (#101047, @jsturtevant) [SIG Network and Windows]

- Fixed a regression since 1.24 in the scheduling framework when overriding MultiPoint plugins (e.g. default plugins).

- Fixed a regression since 1.24 in the scheduling framework when overriding MultiPoint plugins (e.g. default plugins).

text or radio/checkbox input you wish\n// to prepend or append to an input.\n\n.input-group-text {\n  display: flex;\n  align-items: center;\n  padding: $input-padding-y $input-padding-x;\n  margin-bottom: 0; // Allow use of <label> elements by overriding our default margin-bottom\n  @include font-size($input-font-size); // Match inputs\n  font-weight: $font-weight-normal;\n  line-height: $input-line-height;\n  color: $input-group-addon-color;\n  text-align: center;\n  white-space: nowrap;\n  background-color:...

text or radio/checkbox input you wish\n// to prepend or append to an input.\n\n.input-group-text {\n  display: flex;\n  align-items: center;\n  padding: $input-padding-y $input-padding-x;\n  margin-bottom: 0; // Allow use of <label> elements by overriding our default margin-bottom\n  @include font-size($input-font-size); // Match inputs\n  font-weight: $font-weight-normal;\n  line-height: $input-line-height;\n  color: $input-group-addon-color;\n  text-align: center;\n  white-space: nowrap;\n  background-color:...