- Custom resource requests with `fieldValidation=Strict` consistently require `apiVersion` and `kind`, matching non-strict requests ([#109019](https://github.com/kubernetes/kubernetes/pull/109019), [@liggitt](https://github.com/liggitt))

RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 7. GENERAL If any provision...

    * `File()`

* The new parameter fields are:

    * `default_factory`
    * `alias_priority`
    * `validation_alias`
    * `serialization_alias`
    * `discriminator`
    * `strict`
    * `multiple_of`
    * `allow_inf_nan`
    * `max_digits`
    * `decimal_places`
    * `json_schema_extra`

...you can read about them in the Pydantic docs.

- Kubernetes is now built using go 1.17. ([#103692](https://github.com/kubernetes/kubernetes/pull/103692), [@justaugustus](https://github.com/justaugustus))
- Performs strict server side schema validation requests via the `fieldValidation=[Strict,Warn,Ignore]`. ([#105916](https://github.com/kubernetes/kubernetes/pull/105916), [@kevindelgado](https://github.com/kevindelgado))
- Promote `IPv6DualStack` feature to stable.

pkg syscall (darwin-arm64), const IPV6_RTHDR_LOOSE = 0
pkg syscall (darwin-arm64), const IPV6_RTHDR_LOOSE ideal-int
pkg syscall (darwin-arm64), const IPV6_RTHDR_STRICT = 1
pkg syscall (darwin-arm64), const IPV6_RTHDR_STRICT ideal-int
pkg syscall (darwin-arm64), const IPV6_RTHDR_TYPE_0 = 0
pkg syscall (darwin-arm64), const IPV6_RTHDR_TYPE_0 ideal-int
pkg syscall (darwin-arm64), const IPV6_SOCKOPT_RESERVED1 = 3

- Adds the ability to pass --strict-transport-security-directives to the kube-apiserver to set the HSTS header appropriately.  Be sure you understand the consequences to browsers before setting this field. ([#96502](https://github.com/kubernetes/kubernetes/pull/96502), [@249043822]...

- Fixed scheduling of **CronJob** with `@every X` schedules. ([#109250](https://github.com/kubernetes/kubernetes/pull/109250), [@d-honeybadger](https://github.com/d-honeybadger))
- Fixed strict server-side field validation treating `metadata` fields as unknown fields. ([#109268](https://github.com/kubernetes/kubernetes/pull/109268), [@liggitt](https://github.com/liggitt))

- [`KT-56609`](https://youtrack.jetbrains.com/issue/KT-56609) K2: False positive NULL_FOR_NONNULL_TYPE with -Xjsr305=strict and `@Nullable` annotation Java parameter
- [`KT-56656`](https://youtrack.jetbrains.com/issue/KT-56656) K1/K2: inconsistent NOTHING_TO_OVERRIDE with complex nullable annotations

- Add ServedVersions field to StorageVersion API ([#118386](https://github.com/kubernetes/kubernetes/pull/118386), [@Richabanker](https://github.com/Richabanker)) [SIG API Machinery and Testing]