- CustomResourceDefinition with invalid regular expression in the pattern field of OpenAPI v3 validation schemas are no longer considered structural. ([#78453](https://github.com/kubernetes/kubernetes/pull/78453), [@sttts](https://github.com/sttts))

- Specifying the KUBE_TEST_REPO environment variable when e2e tests are executed will instruct the test infrastructure to load that image from a location within the specified repo, using a predefined pattern. ([#93510](https://github.com/kubernetes/kubernetes/pull/93510), [@smarterclayton](https://github.com/smarterclayton)) [SIG Testing]

            seen couple of use cases where the model usage pattern is not as
            expected and would not work with this change.
    *   output tensors of one layer is used in the constructor of another.
    *   symbolic tensors outside the scope of the model are used in custom loss
        functions. The flag can be disabled for these cases and ideally the
        usage pattern will need to be fixed.

- Introduce...

### Docs

* ✏️ Fix validation parameter name in docs, from `regex` to `pattern`. PR [#10085](https://github.com/tiangolo/fastapi/pull/10085) by [@pablodorrio](https://github.com/pablodorrio).

cards, after all.  I needn't be afraid of them!'

  `And who are THESE?' said the Queen, pointing to the three
gardeners who were lying round the rosetree; for, you see, as
they were lying on their faces, and the pattern on their backs
was the same as the rest of the pack, she could not tell whether
they were gardeners, or soldiers, or courtiers, or three of her
own children.

- CEL regex patterns in x-kubernetes-valiation rules are compiled when CRDs are created/updated if the pattern is provided as a string constant in the expression. Any regex compile errors are reported as a CRD create/update validation error. ([#108617](https://github.com/kubernetes/kubernetes/pull/108617), [@jpbetz](https://github.com/jpbetz))

27F0..27FF    ; valid                  ;      ; NV8    # 3.2  UPWARDS QUADRUPLE ARROW..LONG RIGHTWARDS SQUIGGLE ARROW
2800..28FF    ; valid                  ;      ; NV8    # 3.0  BRAILLE PATTERN BLANK..BRAILLE PATTERN DOTS-12345678
2900..2A0B    ; valid                  ;      ; NV8    # 3.2  RIGHTWARDS TWO-HEADED ARROW WITH VERTICAL STROKE..SUMMATION WITH INTEGRAL

thousands of pods simultaneously across hundreds of nodes. Kubelets in this scenario can encounter temporarily increased latency of `delete pod` API calls -- above the target service level objective of 1 second. If you run clusters with this usage pattern and if pod deletion latency could be an issue for you, you might want to wait until the issue is resolved before you upgrade.

For more information and for updates on resolution of this issue, see [#51899](https://github.com/kubernete...

    * the loop to correctly handle acquiring the write lock with deferred
    * unlock to run at that function's completion, following the normal
    * golang lock/deferred-unlock pattern.
* Avoid creating new controller revisions for statefulsets when cache is stale ([#67039](https://github.com/kubernetes/kubernetes/pull/67039), [@mortent](https://github.com/mortent))