* The `NodeRestriction` admission plugin now prevents kubelets from modifying/removing taints applied to their Node API object. ([#63167](https://github.com/kubernetes/kubernetes/pull/63167), [@liggitt](https://github.com/liggitt))

    request itself.
 *  New: `Headers.Builder.addAll(Headers)`.
 *  New: `ResponseBody.create(MediaType, ByteString)`.
 *  New: Embed R8/ProGuard rules in the jar. These will be applied automatically by R8.
 *  Fix: Release the connection if `Authenticator` throws an exception.
 *  Fix: Change the declaration of `OkHttpClient.cache()` to return a `@Nullable Cache`. The return

style

// sucks : Vox Populi Registry Ltd.
// https://www.iana.org/domains/root/db/sucks.html
sucks

// supplies : Binky Moon, LLC
// https://www.iana.org/domains/root/db/supplies.html
supplies

// supply : Binky Moon, LLC
// https://www.iana.org/domains/root/db/supply.html
supply

// support : Binky Moon, LLC

- Fixed vSphere cloud provider not to skip detach volumes from nodes at kube-controller-startup. ([#11724...

   * of reads may not be immediately reflected on the algorithm's data structures. These structures
   * are guarded by a lock and operations are applied in batches to avoid lock contention. The
   * penalty of applying the batches is spread across threads so that the amortized cost is slightly
   * higher than performing just the operation without enforcing the capacity constraint.

### Quality of Service for memory resources

- Introduced dynamic volume provisioning shim for CSI migration ([#73653](https://github.com/kubernetes/kubernetes/pull/73653), [@ddebroy](https://github.com/ddebroy))
- Applied resources from a directory containing kustomization.yaml ([#74140](https://github.com/kubernetes/kubernetes/pull/74140), [@Liujingfang1](https://github.com/Liujingfang1))

        .build(),
    )

    // At least three request/response pairs are required because after the first request is cached
    // a different execution path might be taken. Thus modifications to the cache applied during
    // the second request might not be visible until another request is performed.
    assertThat(get(server.url("/")).body.string()).isEqualTo("ABCABCABC")

  - [beta] AppArmor profiles can be specified & applied to pod containers ([docs](http://kubernetes.io/docs/admin/apparmor/)) ([kubernetes/features#24](https://github.com/kubernetes/enhancements/issues/24))

  * New commands

    * Add `kubectl config rename-context` ([#46114](https://github.com/kubernetes/kubernetes/pull/46114), [@arthur0](https://github.com/arthur0))

    * Add `kubectl apply edit-last-applied` subcommand ([#42256](https://github.com/kubernetes/kubernetes/pull/42256), [@shiywang](https://github.com/shiywang))

  * Strategic Merge Patch