- `kubectl run` has removed the previously deprecated generators, along with flags unrelated to creating pods. `kubectl run` now only creates pods. See specific `kubectl create` subcommands to create objects other than pods. 

- Added scheduler preemption support for pods using `ReadWriteOncePod` PVCs ([#114051](https://github.com/kubernetes/kubernetes/pull/114051), [@chrishenzie](https://github.com/chrishenzie))
- Added the `applyconfiguration` generator to the code-generator script that generates server-side apply configuration and client APIs ([#114987](https://github.com/kubernetes/kubernetes/pull/114987), [@astefanutti](https://github.com/astefanutti))

    /** The key of the configuration. e.g. 0 */
    String THUMBNAIL_GENERATOR_INTERVAL = "thumbnail.generator.interval";

    /** The key of the configuration. e.g. all */
    String THUMBNAIL_GENERATOR_TARGETS = "thumbnail.generator.targets";

    /** The key of the configuration. e.g. true */
    String THUMBNAIL_CRAWLER_ENABLED = "thumbnail.crawler.enabled";

- Updated an audit annotation key used by the `…/serviceac...

 *  Fix: Change `MediaType.charset()` to return null for unexpected charsets.
 *  Fix: Don't skip cache invalidation if the invalidating response has no body.
 *  Fix: Don't use a cryptographic random number generator for web sockets. Some Android devices
    implement `SecureRandom` incorrectly!
 *  Fix: Correctly canonicalize IPv6 addresses in `HttpUrl`. This prevented OkHttp from trusting

- Remove deprecated `--generator, --replicas, --service-generator, --service-overrides, --schedule` from `kubectl run`

## Deprecations
* Remove extensions/v1beta1 Jobs resource, and job/v1beta1 generator. ([#38614](https://github.com/kubernetes/kubernetes/pull/38614), [@soltysh](https://github.com/soltysh))

* New default horizontalpodautoscaler/v1 generator for kubectl autoscale. ([#26775](https://github.com/kubernetes/kubernetes/pull/26775), [@piosz](https://github.com/piosz))
    * Use autoscaling/v1 in kubectl by default.

- Remove deprecated `--generator` flag from `kubectl autoscale`. ([#99900](https://github.com/kubernetes/kubernetes/pull/99900), [@MadhavJivrajani](https://github.com/MadhavJivrajani))
- Remove the deprecated flag `--generator` from `kubectl create deployment` command. ([#99915](https://github.com/kubernetes/kubernetes/pull/99915), [@BLasan](https://github.com/BLasan))

* Add generate-groups.sh and generate-internal-groups.sh to k8s.io/code-generator to easily run generators against CRD or User API Server types. ([#52186](https://github.com/kubernetes/kubernetes/pull/52186), [@sttts](https://github.com/sttts))