- NodeLifecycleController: Now node lease renewal is treated as the heartbeat signal from the node, in addition to NodeStatus Update. ([#69241](https://github.com/kubernetes/kubernetes/pull/69241), [@wangzhen127](https://github.com/wangzhen127))

Do we even need to check? // Who knows! FIPS 204 says // // > Note that there exist malformed inputs that can cause skDecode to // > return values that are not in the correct range. Hence, skDecode // > should only be run on inputs that come from trusted sources. // // so it sounds like it doesn't even want us to check the coefficients are // within bounds, but especially if using this format for key exchange, that // sounds like a bad idea. So we check everything. t1 := make([][n]uint16, k, maxK)...

- PersistentVolumeLabel admission plugin, responsible for labeling `PersistentVolumes` with topology labels, now does not overwrite existing labels on PVs that were dynamically provisioned. It trusts the  dynamic provisioning that it provided the correct labels to the `PersistentVolume`, saving one potentially expensive cloud API call. `PersistentVolumes` created manually by users are labelled by the admission plugin in the same way as before....

        .Builder()
        .heldCertificate(heldCertificate)
        .addTrustedCertificate(heldCertificate.certificate)
        .build()

    // Use that certificate on the server and trust it on the client.
    server.useHttps(handshakeCertificates.sslSocketFactory())
    client =
      client
        .newBuilder()
        .sslSocketFactory(
          handshakeCertificates.sslSocketFactory(),

- The `storageVersionHash` feature is now beta. `StorageVersionHash` is a field in the discovery document of each resource. It enables clients to detect whether the storage version of that resource has changed. Its value must be treated as opaque by clients. Only equality comparison on the value is valid. ([#78325](https://github.com/kubernetes/kubernetes/pull/78325), [@caesarxuchao](https://github.com/caesarxuchao))

    <glob pattern="*.mmmp"/>
    <glob pattern="*.mmas"/>
  </mime-type>

  <mime-type type="application/vnd.minisoft-hp3000-save"/>
  <mime-type type="application/vnd.mitsubishi.misty-guard.trustweb"/>
  <mime-type type="application/vnd.mobius.daf">
    <glob pattern="*.daf"/>
  </mime-type>
  <mime-type type="application/vnd.mobius.dis">
    <glob pattern="*.dis"/>
  </mime-type>

* Conformance tests are added for the DaemonSet kinds in the apps/v1 group version. Deprecated versions of DaemonSet will not be tested for conformance, and conformance is only applicable to release 1.10 and later. ([#60456](https://github.com/kubernetes/kubernetes/pull/60456), [@kow3ns](https://github.com/kow3ns))

A security issue was discovered in Kubernetes where users may have access to secure endpoints in the control plane network. Kubernetes clusters are only affected if an untrusted user can to modify Node objects and send requests proxying through them.

  * The audit log file defaults to JSON encoding when using the advanced auditing feature gate.
  * An audit policy file without either an `apiVersion` or a `kind` field may be treated as invalid.
  * The webhook and log file now output the `v1beta1` event format.

    For more details, see [Advanced audit](https://kubernetes.io/docs/tasks/debug-application-cluster/audit/#advanced-audit).

- Slow container runtime initialization no longer causes the System WatchDog to kill the kubelet. The Device Manager was treated as unhealthy until it began listening on its port. ([#135153](https://github.com/kubernetes/kubernetes/pull/135153), [@SergeyKanzhelev](https://github.com/SergeyKanzhelev))