* Many improvements to the upgrade process and other bug fixes

### SIG Instrumentation

As far as Sig Instrumentation, the major change in Kubernetes 1.11 is the deprecation of Heapster as part of ongoing efforts to move to the new Kubernetes monitoring model. Clusters still using Heapster for autoscaling should be migrated over to metrics-server and the custom metrics API. See the deprecation section for more information.

kube-apiserver (instead of --etcd-config):
     * --etcd-certfile, --etcd-keyfile (if using client cert auth)
     * --etcd-cafile (if not using system roots)
  * As part of preparation in 1.2 for adding support for protocol buffers (and the
direct YAML support in the API available today), the Content-Type and Accept
headers are now properly handled as per the HTTP spec.  As a consequence, if

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful

- Start reporting swap capacity as part of `node.status.nodeSystemInfo`. ([#129954](https://github.com/kubernetes/kubernetes/pull/129954), [@iholder101](https://github.com/iholder101)) [SIG API Machinery, Apps and Node]

				"application/vnd.fujitsu.oasys",
				"application/vnd.fujitsu.oasys2",
				"application/vnd.fujitsu.oasys3",
				"application/vnd.fujitsu.oasysgp",
				"application/vnd.fujitsu.oasysprs",
				"application/vnd.fujixerox.art-ex",
				"application/vnd.fujixerox.art4",
				"application/vnd.fujixerox.hbpl",
				"application/vnd.fujixerox.ddd",
				"application/vnd.fujixerox.docuworks",
				"application/vnd.fujixerox.docuworks.binder",

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful

// Notable members of the hall of shame include:
//   - gitee.com/quant1x/num
//
// Do not remove or change the type signature.
// See go.dev/issue/67401.
//
// Note that this comment is not part of the doc comment.
//
//go:linkname Repeat

// Repeat returns a new byte slice consisting of count copies of b.
//
// It panics if count is negative or if the result of (len(b) * count)
// overflows.

    public static final String LABELS_LANG = "{labels.lang}";

    /** The key of the message: Outputs */
    public static final String LABELS_OUTPUTS = "{labels.outputs}";

    /** The key of the message: Part-of-speech */
    public static final String LABELS_POS = "{labels.pos}";

    /** The key of the message: Delete old job logs */
    public static final String LABELS_PURGE_JOB_LOG_DAY = "{labels.purgeJobLogDay}";

* kubectl: Fix bug that showed terminated/evicted pods even without `--show-all`. ([#48786](https://github.com/kubernetes/kubernetes/pull/48786), [@janetkuo](https://github.com/janetkuo))
* Never prevent deletion of resources as part of namespace lifecycle ([#48733](https://github.com/kubernetes/kubernetes/pull/48733), [@liggitt](https://github.com/liggitt))

- In order to enable dual-stack support within kubeadm and kubernetes components, as part of the init config file, the user should set feature-gate `IPv6DualStack=true` in the ClusterConfiguration. Additionally, for each worker node, the user should set the feature-gate for kubelet using either `nodeRegistration.kubeletExtraArgs` or `KUBELET_EXTRA_ARGS`....