- Fixed a bug that prevented deletion of dynamically provisioned volumes in Quobyte backends. ([#68925](https://github.com/kubernetes/kubernetes/pull/68925), [@casusbelli](https://github.com/casusbelli))

### Testing

- The extension API server can now dynamically discover the requestheader CA certificate when the core API server doesn't use certificate based authentication for it's clients. ([#66394](https://github.com/kubernetes/kubernetes/pull/66394), [@rtripat](https://github.com/rtripat))

        the input layer.

## Bug Fixes and Other Changes

### TF Core:

*   Set `tf2_behavior` to 1 to enable V2 for early loading cases.
*   Add `execute_fn_for_device function` to dynamically choose the
    implementation based on underlying device placement.
*   Eager:
    *   Add `reduce_logsumexp` benchmark with experiment compile.
    *   Give `EagerTensor`s a meaningful `__array__` implementation.

- Expose `/debug/flags/v` to allow dynamically setting log level for kube-proxy. ([#98306](https://github.com/kubernetes/kubernetes/pull/98306), [@borgerli](https://github.com/borgerli)) [SIG Network]

During server startup, prior to the server reporting healthy (via `/healthz`), not all API groups may be reported.
Wait for the server to report healthy (via `/healthz`) before depending on the information provided by the discovery APIs.
Additionally, since the information returned from the discovery APIs may change dynamically, a cache of the results should not be considered authoritative.

* A smaller fix for the apiserver panic. ([#67552](https://github.com/kubernetes/kubernetes/pull/67552), [@wgliang](https://github.com/wgliang))
* Allows extension API server to dynamically discover the requestheader CA certificate when the core API server doesn't use certificate based authentication for it's clients ([#66394](https://github.com/kubernetes/kubernetes/pull/66394), [@rtripat](https://github.com/rtripat))

[image credential providers](https://kubernetes.io/docs/tasks/kubelet-credential-provider/kubelet-credential-provider/)
has now graduated to Beta.
This allows the kubelet to dynamically retrieve credentials for a container image registry
using exec plugins, rather than storing credentials on the node's filesystem.

### Contextual Logging in Alpha

- Kubernetes cannot distinguish between GCE Zonal PDs and Regional PDs with the same name. To workaround this issue, precreate PDs with unique names. PDs that are dynamically provisioned do not encounter this issue. ([#70716](https://github.com/kubernetes/kubernetes/pull/70716), [@msau42](https://github.com/msau42))

## Known Issues

* Fix an issue that pods using hostNetwork keep increasing. ([#67456](https://github.com/kubernetes/kubernetes/pull/67456), [@Huang-Wei](https://github.com/Huang-Wei))
* Allows extension API server to dynamically discover the requestheader CA certificate when the core API server doesn't use certificate based authentication for it's clients ([#66394](https://github.com/kubernetes/kubernetes/pull/66394), [@rtripat](https://github.com/rtripat))

### Secrets
* Populate environment variables from a secrets. ([#39446](https://github.com/kubernetes/kubernetes/pull/39446), [@fraenkel](https://github.com/fraenkel))
* Added a new secret type "bootstrap.kubernetes.io/token" for dynamically creating TLS bootstrapping bearer tokens. ([#41281](https://github.com/kubernetes/kubernetes/pull/41281), [@ericchiang](https://github.com/ericchiang))

### Service