* Authorization sets `authorization.k8s.io/decision` and `authorization.k8s.io/reason` annotations with the authorization decision ("allow" or "forbid") and a human-readable description of why the decision was made (for example, RBAC includes the name of the role/binding/subject which allowed a request).

- Adopted a new implementation of watch caches for **list** verbs, using a btree data structure. The new implementation is active by default; you can opt out by disabling the `BtreeWatchCache` feature gate. ([#128415](https://github.com/kubernetes/kubernetes/pull/128415), [@serathius](https://github.com/serathius))...

- Fix etcd_object_counts metric reported by kube-apiserver ([#94773](https://github.com/kubernetes/kubernetes/pull/94773), [@tkashem](https://github.com/tkashem)) [SIG API Machinery]
- Fix incorrectly reported verbs for kube-apiserver metrics for CRD objects ([#93523](https://github.com/kubernetes/kubernetes/pull/93523), [@wojtek-t](https://github.com/wojtek-t)) [SIG API Machinery and Instrumentation]

           rules:
           - apiGroups: [""]
             resources: ["events"]
             verbs:
             - create
             - patch
             - update
           - apiGroups: [""]
             resources: ["secrets"]
             verbs:
             - get
             - create
         - apiVersion: rbac.authorization.k8s.io/v1
           kind: ClusterRoleBinding

  the garbage collector starts to manage it.


#### Monitoring/Prometheus

* The --long-running-request-regexp flag to kube-apiserver is deprecated and will be removed in a future release. Long-running requests are now detected based on specific verbs (watch, proxy) or subresources (proxy, portforward, log, exec, attach). ([#38119](https://github.com/kubernetes/kubernetes/pull/38119), [@liggitt](https://github.com/liggitt))

- Forbid to set matchLabelKeys when labelSelector is not set in topologySpreadConstraints ([#116535](https://github.com/kubernetes/kubernetes/pull/116535), [@denkensk](https://github.com/denkensk))

// https://www.iana.org/domains/root/db/wine.html
wine

// winners : The TJX Companies, Inc.
// https://www.iana.org/domains/root/db/winners.html
winners

// wme : William Morris Endeavor Entertainment, LLC
// https://www.iana.org/domains/root/db/wme.html
wme

// wolterskluwer : Wolters Kluwer N.V.
// https://www.iana.org/domains/root/db/wolterskluwer.html
wolterskluwer

* Fixes a bug in Heapster deployment for google sink. ([#57902](https://github.com/kubernetes/kubernetes/pull/57902), [@kawych](https://github.com/kawych))
* Forbid unnamed contexts in kubeconfigs. ([#56769](https://github.com/kubernetes/kubernetes/pull/56769), [@dixudx](https://github.com/dixudx))

- Fixes calculating the requeue time in the cronjob controller, which results in properly handling failed/stuck jobs ([#121327](https://github.com/kubernetes/kubernetes/pull/121327), [@soltysh](https://github.com/soltysh)) [SIG Apps]
- Forbid sysctls for pod sharing the respective namespaces with the host when creating and update pod without such sysctls ([#118705](https://github.com/kubernetes/kubernetes/pull/118705), [@pacoxu](https://github.com/pacoxu)) [SIG Apps and Node]