* Allow missing keys in templates by default ([#39486](https://github.com/kubernetes/kubernetes/pull/39486), [@ncdc](https://github.com/ncdc))
* Fix kubectl get -f <file> -o <nondefault printer> so it prints all items in the file ([#39038](https://github.com/kubernetes/kubernetes/pull/39038), [@ncdc](https://github.com/ncdc))

- The new flag `--chunk-size=SIZE` has been added to `kubectl describe`. This flag may be used to alter the number of items or disable this feature when `0` is passed. ([#101171](https://github.com/kubernetes/kubernetes/pull/101171),...

- Fixes a regression in 1.23 that incorrectly pruned data from array items of a custom resource that set `x-kubernetes-preserve-unknown-fields: true` ([#107689](https://github.com/kubernetes/kubernetes/pull/107689), [@liggitt](https://github.com/liggitt)) [SIG API Machinery]

## Dependencies

- CustomResourceDefinition schemas that use `x-kubernetes-list-map-keys` to specify properties that uniquely identify list items must make those properties required or have a default value, to ensure those properties are present for all list items. See https://kubernetes.io/docs/reference/using-api/api-concepts/#merge-strategy for details. ([#88076](https://github.com/kubernetes/kubernetes/pull/88076), [@eloyekunle](https://github.com/eloyekunle))...

- CRDs: For structural schemas, non-nullable null map fields will now be dropped and defaulted if a default is available. null items in the list will continue being preserved, and fail validation if not nullable. ([#95423](https://github.com/kubernetes/kubernetes/pull/95423), [@apelisse](https://github.com/apelisse)) [SIG API Machinery]

- Fixed a rare race condition handling requests that timeout. ([#107452](https://github.com/kubernetes/kubernetes/pull/107452), [@liggitt](https://github.com/liggitt))
- Fixed a regression in 1.23 that incorrectly pruned data from array items of a custom resource that set `x-kubernetes-preserve-unknown-fields: true`. ([#107688](https://github.com/kubernetes/kubernetes/pull/107688), [@liggitt](https://github.com/liggitt))

  - A `create` or `update` API request with duplicate items in a keyed list no longer wipes out managedFields. Examples include env var entries with the same name, or port entries with the same containerPort in a pod spec.

* **[beta]** Added support for mount options in persistent volumes.
* **[alpha]** All in one volume proposal - a new volume driver capable of projecting secrets, configmaps, and downward API items into the same directory.

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

   ([#122231](https://github.com/kubernetes/kubernetes/pull/122231), [@ardaguclu](https://github.com/ardaguclu))
- Added `WatchListClient` feature gate to `client-go`. When enabled, it allows the client to receive a stream of individual items instead of chunking from the server.
   ([#122571](https://github.com/kubernetes/kubernetes/pull/122571), [@p0lyn0mial](https://github.com/p0lyn0mial))

* Add density (batch pods creation latency and resource) and resource performance tests to `test-e2e-node' built for Linux only ([#30026](https://github.com/kubernetes/kubernetes/pull/30026), [@coufon](https://github.com/coufon))
* Clean up items from moving local cluster setup guides ([#30035](https://github.com/kubernetes/kubernetes/pull/30035), [@pwittrock](https://github.com/pwittrock))