- Enabled AttachVolumeLimit feature ([#69225](https://github.com/kubernetes/kubernetes/pull/69225), [@gnufied](https://github.com/gnufied))
- The default storage class annotation for the storage addons has been changed to use the GA variant ([#68345](https://github.com/kubernetes/kubernetes/pull/68345), [@smelchior](https://github.com/smelchior))

- [`KT-49045`](https://youtrack.jetbrains.com/issue/KT-49045) False positive USELESS_CAST in generic type with nullable type parameter
- [`KT-49024`](https://youtrack.jetbrains.com/issue/KT-49024) AssertionError: Variance conflict: type parameter variance 'out' and projection kind 'in' cannot be combined
- [`KT-48975`](https://youtrack.jetbrains.com/issue/KT-48975) Type mismatch: inferred type is X but Nothing! was expected with the AssertJ latest version

Pruning is activated by setting `spec.preserveUnknownFields: false` in the CustomResourceDefinition. A future apiextensions.k8s.io/v1 variant of CRDs will enforce pruning.

Pruning requires that CRD developer provides complete, structural validation schemas, either at the top-level or for all versions of the CRD.

#### CustomResourceDefinition Defaulting

by automatic tools such as integrated development environments.
</p>

<h2 id="Notation">Notation</h2>
<p>
The syntax is specified using a
<a href="https://en.wikipedia.org/wiki/Wirth_syntax_notation">variant</a>
of Extended Backus-Naur Form (EBNF):
</p>

<pre class="grammar">
Syntax      = { Production } .
Production  = production_name "=" [ Expression ] "." .
Expression  = Term { "|" Term } .

pkg syscall (netbsd-arm64-cgo), const ETHERTYPE_VALID = 5632
pkg syscall (netbsd-arm64-cgo), const ETHERTYPE_VALID ideal-int
pkg syscall (netbsd-arm64-cgo), const ETHERTYPE_VARIAN = 32989
pkg syscall (netbsd-arm64-cgo), const ETHERTYPE_VARIAN ideal-int
pkg syscall (netbsd-arm64-cgo), const ETHERTYPE_VAXELN = 32827
pkg syscall (netbsd-arm64-cgo), const ETHERTYPE_VAXELN ideal-int

- Adds `OpenAPIV3SchemaInterface` to `DiscoveryClient` and its variants for fetching OpenAPI v3 schema documents. ([#108992](https://github.com/kubernetes/kubernetes/pull/108992), [@alexzielenski](https://github.com/alexzielenski))

    * Remove deprecated and unmaintained openstack-heat kube-up.sh.  ([#58021](https://github.com/kubernetes/kubernetes/pull/58021), [@mikedanese](https://github.com/mikedanese))

    * Remove deprecated vagrant kube-up.sh. ([#58118](https://github.com/kubernetes/kubernetes/pull/58118),[@roberthbailey](https://github.com/roberthbailey))

To grow the developer community, SIG Windows  released multiple [tools](https://github.com/kubernetes-sigs/sig-windows-dev-tools/). The new tools support multiple CNI providers (Antrea, Calico), can run on multiple platforms (any vagrant compatible provider, such as Hyper-V, VirtualBox, or vSphere).