With Kubernetes 1.24, the [gRPC probes functionality](https://github.com/kubernetes/enhancements/issues/2727)
has entered beta and is available by default. You can now [configure startup, liveness, and readiness probes](https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/#configure-probes) for your gRPC app
natively within Kubernetes, without exposing an HTTP endpoint or
using an extra executable.

* allow authentication through a front-proxy ([#35452](https://github.com/kubernetes/kubernetes/pull/35452), [@deads2k](https://github.com/deads2k))
* On GCI, cleanup kubelet startup ([#35319](https://github.com/kubernetes/kubernetes/pull/35319), [@vishh](https://github.com/vishh))

- The API server now detects and fails on startup if there are conflicting issuers between JWT authenticators and service account configurations. Previously, such configurations would run but could be inconsistently effective depending on the credential. ([#123561](https://github.com/kubernetes/...

- Fix image pulling failure when IMDS is unavailable in kubelet startup ([#110523](https://github.com/kubernetes/kubernetes/pull/110523), [@andyzhangx](https://github.com/andyzhangx)) [SIG Cloud Provider]

* RBAC role and role-binding reconciliation now ensures namespaces exist when reconciling on startup. ([#48480](https://github.com/kubernetes/kubernetes/pull/48480), [@liggitt](https://github.com/liggitt))



# v1.6.7

[Documentation](https://docs.k8s.io) & [Examples](https://releases.k8s.io/release-1.6/examples)

- GCE/Windows: disabled stackdriver logging agent to prevent node startup failures ([#76099](https://github.com/kubernetes/kubernetes/pull/76099), [@yujuhong](https://github.com/yujuhong))

- Kubeadm: Switched to using the new etcd endpoints introduced in 3.5.11 - /livez (for liveness probe) and /readyz (for readyness and startup probe). With this change it is no longer possible to deploy a custom etcd version older than 3.5.11 with kubeadm 1.31. If so, please upgrade etcd to a supported version. ([#124465](https://github.com/kubernetes/kubernetes/pull/124465), [@neolit12...

* This fix prevents a GCE PD volume from being mounted if the udev device link is stale and tries to correct the link. ([#66832](https://github.com/kubernetes/kubernetes/pull/66832), [@msau42](https://github.com/msau42))
* Fix kubelet startup failure when using ExecPlugin in kubeconfig ([#66395](https://github.com/kubernetes/kubernetes/pull/66395), [@awly](https://github.com/awly))

 - Base-images: Update to kube-cross:v1.13.9-5 ([#90965](https://github.com/kubernetes/kubernetes/pull/90965), [@justaugustus](https://github.com/justaugustus)) [SIG Release]
 - CSINode initialization does not crash kubelet on startup when APIServer is not reachable or kubelet has not the right credentials yet. ([#89589](https://github.com/kubernetes/kubernetes/pull/89589), [@jsafrane](https://github.com/jsafrane)) [SIG Storage]

      control the initial parallelism setting used by autotune before the data
      pipeline has started running. The default is 16. A lower value reduces
      initial memory usage, while a higher value improves startup time.

## Keras

*  `keras.layers.experimental.DynamicEmbedding`
    * Added `DynamicEmbedding` Keras layer
    * Added 'UpdateEmbeddingCallback`