RIGHTS a) Subject to the terms of this Agreement, each Contributor hereby grants Recipient a non-exclusive, worldwide, royalty-free copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, distribute and sublicense the Contribution of such Contributor, if any, and such derivative works, in source code and object code form. b) Subject to the terms of this Agreement, each Contributor hereby grants Recipient a non-exclusive, worldwide, royalty-free patent license under...

* RBAC: the `system:node` role is no longer automatically granted to the `system:nodes` group in new clusters. It is recommended that nodes be authorized using the `Node` authorization mode instead. Installations that wish to continue giving all members of the `system:nodes` group the `system:node` role (which grants broad read access, including all secrets and configmaps) must create an installation-specific `ClusterRoleBinding`. ([#...

#### Security
* Features:

  * Permission to use a PodSecurityPolicy can now be granted within a single namespace by allowing the use verb on the podsecuritypolicies resource within the namespace. ([#42360](https://github.com/kubernetes/kubernetes/pull/42360), [@liggitt](https://github.com/liggitt))

- GCE clusters will include some IP ranges that are not used on the public Internet in the list of non-masq IPs. Bumped ip-masq-agent version to v2.3.0 with flag `nomasq-all-reserved-ranges` turned on. ([#77458](https://github.com/kubernetes/kubernetes/pull/77458), [@grayluck](https://github.com/grayluck))

- Added the latest GCE pinhole firewall feature, which introduces `destination-ranges` in the ingress `firewall-rules`. It restricts access to the backend IPs by allowing traffic through `ILB` or `NetLB` only. This change does **NOT** change the existing `ILB` or `NetLB` behavior. ([#109510](https://github.com/kubernetes/kubernetes/pull/109510),...

* 🐛 Fix support for prefix on APIRouter WebSockets. PR [#2640](https://github.com/tiangolo/fastapi/pull/2640) by [@Kludex](https://github.com/Kludex).

### Upgrades

* ⬆️ Update ujson ranges for CVE-2021-45958. PR [#4804](https://github.com/tiangolo/fastapi/pull/4804) by [@tiangolo](https://github.com/tiangolo).

// are set, the values in SecurityContext take precedence.
message SecurityContext {
  // The capabilities to add/drop when running containers.
  // Defaults to the default set of capabilities granted by the container runtime.
  // Note that this field cannot be set when spec.os.name is windows.
  // +optional
  optional Capabilities capabilities = 1;

  // Run container in privileged mode.

- PodSecurityPolicy objects now support a `MayRunAs` rule for `fsGroup` and `supplementalGroups` options. This allows specifying ranges of allowed GIDs for pods/containers without forcing a default GID the way `MustRunAs` does. This means that a container to which such a policy applies to won't use any fsGroup/supplementalGroup GID if not explicitly specified, yet a specified GID...

In each case the value of the literal is the value represented by
the digits in the corresponding base.
</p>

<p>
Although these representations all result in an integer, they have
different valid ranges.  Octal escapes must represent a value between
0 and 255 inclusive.  Hexadecimal escapes satisfy this condition
by construction. The escapes <code>\u</code> and <code>\U</code>

* fix smb mount issue ([#65751](https://github.com/kubernetes/kubernetes/pull/65751), [@andyzhangx](https://github.com/andyzhangx))
* Fix a scalability issue where high rates of event writes degraded etcd performance. ([#64539](https://github.com/kubernetes/kubernetes/pull/64539), [@ccding](https://github.com/ccding))