- 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))

- 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]

- 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))

- 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...

- 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

"users[*].config.scopes" field in the KUBECONFIG file.) This way, users can now  set a Google Service Account JSON key in the  GOOGLE_APPLICATION_CREDENTIALS environment variable, craft a kubeconfig file with GKE master IP+CA cert, and authenticate to GKE in headless mode without requiring gcloud CLI. ([#58141](https://github.com/kubernetes/kubernetes/pull/58141), [@ahmetb](https://github.com/ahmetb))

* kubectl port-forward no longer supports the deprecated -p <pod-name> flag; the flag itself is...

* OpenStack cloudprovider: Fix deletion of orphaned routes ([#62729](https://github.com/kubernetes/kubernetes/pull/62729), [@databus23](https://github.com/databus23))
* Fix a bug that headless service without ports fails to have endpoint created. ([#62497](https://github.com/kubernetes/kubernetes/pull/62497), [@MrHohn](https://github.com/MrHohn))

n-environment/tools/kubeadm/high-availability/). An entire new test suite has been created specifically for ensuring these features will stay stable over time.

Certificate management has become more robust in 1.15, with kubeadm now seamlessly rotating all your certificates (on upgrades) before they expire. Check the [kubeadm documentation](https://github.com/kubernetes/website/blob/dev-1.15/content/en/docs/reference/setup-tools/kubeadm/kubeadm-alpha.md) for information on how to manage...