- Client-go: fixed potential data races retrying requests using a custom `io.Reader` body; with this fix, only requests with no body or with `string` / `[]byte` / `runtime.Object` bodies can be retried ([#113933](https://github.com/kubernetes/kubernetes/pull/113933), [@liggitt](https://github.com/liggitt))

cluster security policies.

For the 1.8 release, SIG Auth focused on stablizing existing features that were introduced
in previous releases. RBAC was moved from beta to v1, and advanced auditing was moved from alpha
to beta. Encryption of resources stored on disk (resources at rest) remained in alpha, and the SIG began exploring integrations with external key management systems.

- Fixes an issue calculating total CPU usage reported for Windows nodes ([#122999](https://github.com/kubernetes/kubernetes/pull/122999), [@marosset](https://github.com/marosset)) [SIG Node and Windows]
- Prevent watch cache starvation by moving its watch to separate RPC and add a SeparateCacheWatchRPC feature flag to disable this behavior ([#123694](https://github.com/kubernetes/kubernetes/pull/123694), [@mengqiy](https://github.com/mengqiy)) [SIG API Machinery]

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- CRD deep copies should no longer contain shallow copies of `JSONSchemaProps.XValidations`. ([#107956](https://github.com/kubernetes/kubernetes/pull/107956), [@benluddy](https://github.com/benluddy))

has been working on for a few releases. The goal is to move in-tree volume plugins to out-of-tree CSI drivers and eventually remove the in-tree volume plugins. The [core CSI Migration](https://github.com/kubernetes/enhancements/tree/master/keps/sig-storage/625-csi-migration) feature moved to GA. CSI Migration for GCE PD and AWS EBS also moved to GA. CSI Migration for vSphere remains in beta (but is on by default). CSI Migration for Portworx moved to Beta (but is off-by-default).


###...

- Prevented watch cache starvation by moving its watch to separate RPC. Added a `SeparateCacheWatchRPC` feature flag to disable this behavior. ([#123532](https://github.com/kubernetes/kubernetes/pull/123532), [@serathius](https://github.com/serathius))