- Kube-proxy initialization waits for all pre-sync events from node and serviceCIDR informers to be delivered. ([#126561](https://github.com/kubernetes/kubernetes/pull/126561), [@wedaly](https://github.com/wedaly)) [SIG Network]

   ([#123520](https://github.com/kubernetes/kubernetes/pull/123520), [@haircommander](https://github.com/haircommander))
- Informers now supports adding Indexers after the informer starts.
   ([#117046](https://github.com/kubernetes/kubernetes/pull/117046), [@howardjohn](https://github.com/howardjohn))
- Printed more information when `kubectl describe` a `VolumeAttributesClass`.

  a bug in the transforming informer during the Resync operation, 
  by making the transforming function idempotent. ([#124352](https://github.com/kubernetes/kubernetes/pull/124352), [@wojtek-t](https://github.com/wojtek-t)) [SIG API Machinery and Scheduling]

- Fixed a race condition between `Run()` and `SetTransform()` and `SetWatchErrorHandler()` in shared informers. ([#117870](https://github.com/kubernetes/kubernetes/pull/117870), [@howardjohn](https://github.com/howardjohn)) [SIG API Machinery]