- Introduction of the pod overhead feature to the scheduler. This functionality is alpha-level as of
  Kubernetes v1.16, and is only honored by servers that enable the PodOverhead feature.gate. ([#78319](https://github.com/kubernetes/kubernetes/pull/78319), [@egernst](https://github.com/egernst))

- Added `.spec.completionMode` field to Job, with accepted values `NonIndexed` (default) and `Indexed`. This is an alpha field and is only honored by servers with the `IndexedJob` feature gate enabled. ([#98441](https://github.com/kubernetes/kubernetes/pull/98441), [@alculquicondor](https://github.com/alculquicondor)) [SIG Apps and CLI]

- The `--leader-elect*` CLI args are now honored in scheduler. ([#105915](https://github.com/kubernetes/kubernetes/pull/105915), [@Huang-Wei](https://github.com/Huang-Wei))
- The `--leader-elect*` CLI args are now honored in the scheduler. ([#105712](https://github.com/kubernetes/kubernetes/pull/105712), [@Huang-Wei](https://github.com/Huang-Wei))

    assertThat(get2.headers["Proxy-Authorization"]).isEqualTo("password")
  }

  /**
   * OkHttp has a bug where a `Connection: close` response header is not honored when establishing a
   * TLS tunnel. https://github.com/square/okhttp/issues/2426
   */
  @Test
  fun proxyAuthenticateOnConnectWithConnectionClose() {
    server.useHttps(handshakeCertificates.sslSocketFactory())

- Graceful termination will now be honored when deleting a collection of pods. ([#100101](https://github.com/kubernetes/kubernetes/pull/100101), [@deads2k](https://github.com/deads2k)) [SIG API Machinery, Node and Testing]

- The `RemoteRequestHeaderUID` feature moves to beta and is now enabled by default. This makes the kube-apiserver propagate UIDs in the `X-Remote-Uid` header in requests to the aggregated API servers. The header is not honored by default for incoming requests, but that can be enabled by setting the `--requestheader-uid-headers` flag explicitly. ([#130560](https://github.com/kubernetes/kubernetes/pull/130560), [@stlaz](https://github.com/stlaz)) [SIG API Machinery, Auth...

- Fixed a bug where dry-run is not honored for pod/eviction sub-resource. ([#76969](https://github.com/kubernetes/kubernetes/pull/76969), [@apelisse](https://github.com/apelisse))

- Disable watchcache for events ([#96052](https://github.com/kubernetes/kubernetes/pull/96052), [@wojtek-t](https://github.com/wojtek-t)) [SIG API Machinery]
- Disabled `LocalStorageCapacityIsolation` feature gate is honored during scheduling. ([#96092](https://github.com/kubernetes/kubernetes/pull/96092), [@Huang-Wei](https://github.com/Huang-Wei)) [SIG Scheduling]

* fix incorrect prometheus azure metrics ([#77722](https://github.com/kubernetes/kubernetes/pull/77722), [@andyzhangx](https://github.com/andyzhangx))
* Fixes a bug where dry-run is not honored for pod/eviction sub-resource. ([#76969](https://github.com/kubernetes/kubernetes/pull/76969), [@apelisse](https://github.com/apelisse))

* Fixed a bug in the apiserver storage that could cause just-added finalizers to be ignored on an immediately following delete request, leading to premature deletion. ([#77619](https://github.com/kubernetes/kubernetes/pull/77619), [@caesarxuchao](https://github.com/caesarxuchao))