- Kube-controller-manager: Fixes bug setting headless service labels on endpoints ([#85361](https://github.com/kubernetes/kubernetes/pull/85361), [@liggitt](https://github.com/liggitt))

- kube-apiserver: a new `--requestheader-uid-headers` flag allows configuring request header authentication to obtain the authenticating user's UID from the specified headers. The suggested value for the new option is `X-Remote-Uid`. When specified, the `kube-system/extension-apiserver-authentication` configmap will include the value in its `.data[requestheader-uid-headers]` field. ([#115834](https://github.com/kubernetes/kubernetes/pull/115834), [@stlaz](...

- Added warnings when creating headless service with set `loadBalancerIP`,`externalIPs` and/or `SessionAffinity`. ([#132214](https://github.com/kubernetes/kubernetes/pull/132214), [@Peac36](https://github.com/Peac36))

- On single-stack configured (IPv4 or IPv6, but not both) clusters, Services which are both headless (no clusterIP) and selectorless (empty or undefined selector) will report `ipFamilyPolicy RequireDualStack` and will have entries in `ipFamilies[]` for both IPv4 and IPv6.  This is a change from alpha, but does not have any impact on the manually-specified...

- Adds `create ingress` command to `kubectl` ([#78153](https://github.com/kubernetes/kubernetes/pull/78153), [@amimof](https://github.com/amimof)) [SIG CLI and Network]
- Adds a headless service on node-local-cache addon. ([#88412](https://github.com/kubernetes/kubernetes/pull/88412), [@stafot](https://github.com/stafot)) [SIG Cloud Provider and Network]

- Fixed the EndpointSliceController to correctly create endpoints for IPv6-only pods.
  
  Fixed the EndpointController to allow IPv6 headless services, if the IPv6DualStack
  feature gate is enabled, by specifying `ipFamily: IPv6` on the service. (This already

- fixes a validation error that could prevent updates to StatefulSet objects containing non-normalized resource requests ([#66165](https://github.com/kubernetes/kubernetes/pull/66165), [@liggitt](https://github.com/liggitt))
- Headless Services with no ports defined will now create Endpoints correctly, and appear in DNS. ([#67622](https://github.com/kubernetes/kubernetes/pull/67622), [@thockin](https://github.com/thockin))

- Handle Generic Ephemeral Volumes properly in the node limits scheduler filter and the kubelet `hostPath` check. ([#100482](https://github.com/kubernetes/kubernetes/pull/100482), [@pohly](https://github.com/pohly))

- Services implemented a field selector for the ClusterIP and Type fields.
  The Kubelet uses this field selector to avoid monitoring Headless Services, which helps reduce memory consumption. ([#123905](https://github.com/kubernetes/kubernetes/pull/123905), [@aojea](https://github.com/aojea)) [SIG Apps, Node and Testing]

* [Federation] Make federation etcd PVC size configurable ([#36310](https://github.com/kubernetes/kubernetes/pull/36310), [@irfanurrehman](https://github.com/irfanurrehman))
* Allow no ports when exposing headless service ([#32811](https://github.com/kubernetes/kubernetes/pull/32811), [@fraenkel](https://github.com/fraenkel))