This release includes a change to [kubectl get and describe to work better with extensions](https://github.com/kubernetes/enhancements/issues/515), as the server, rather than the client, returns this information for a smoother user experience.

### Network

## Changes by Kind

### Bug or Regression

- Fix a bug when the hostname label of a node does not match the node name, pods bound to a PV with nodeAffinity using the hostname may be scheduled to the wrong node or experience scheduling failures. ([#127586](https://github.com/kubernetes/kubernetes/pull/127586), [@AxeZhan](https://github.com/AxeZhan)) [SIG Scheduling and Storage]

- We’re working to simplify the Windows node join experience with better scripts and kubeadm. Scripts and doc updates are still in the works, but some of the needed improvements are included in 1.15.  These include:

[SIG Autoscaling]: https://github.com/kubernetes/community/tree/master/sig-autoscaling

### SIG Cluster Lifecycle

[SIG Cluster Lifecycle][] is responsible for the user experience of deploying,
upgrading, and deleting clusters.

For the 1.8 release, SIG Cluster Lifecycle continued to focus on expanding the
capabilities of kubeadm, which is both a user-facing tool to manage clusters

## Changes by Kind

### Bug or Regression

- Fix a bug when the hostname label of a node does not match the node name, pods bound to a PV with nodeAffinity using the hostname may be scheduled to the wrong node or experience scheduling failures. ([#127585](https://github.com/kubernetes/kubernetes/pull/127585), [@AxeZhan](https://github.com/AxeZhan)) [SIG Scheduling and Storage]

### etcd moves to version 3.5.0

// Submitted by Thomas Wouters <******@****.***>
webhosting.be
hosting-cluster.nl

// Contentful GmbH : https://www.contentful.com
// Submitted by Contentful Developer Experience Team <******@****.***>
ctfcloud.net

// Convex : https://convex.dev/
// Submitted by James Cowling <******@****.***>
convex.site

We expect this implementation to progress from alpha to beta and GA in coming releases, so we’re eager to have you comment about your dual-stack experiences in [#k8s-dual-stack](https://kubernetes.slack.com/messages/k8s-dual-stack) or in [enhancements #563](https://features.k8s.io/563). 

### go1.15.5

  - [Other doc]: <link>
  --> ([#86139](https://github.com/kubernetes/kubernetes/pull/86139), [@jasimmons](https://github.com/jasimmons)) [SIG API Machinery, Apps, Architecture, Auth, Autoscaling, CLI, Contributor Experience, Instrumentation, Network, Node, Release, Scheduling, Storage and Testing]

- Indexed Jobs graduates to stable ([#107395](https://github.com/kubernetes/kubernetes/pull/107395), [@alculquicondor](https://gith...