The API does include a few breaking changes:
  - The "extraArgs" component construct is now a list of "name"/"value" pairs instead of a string/string map. This has been done to support duplicate args where needed.
  - The "JoinConfiguration.discovery.timeout" field has been replaced by "JoinConfiguration.timeouts.discovery".

  | o add specification element to a field, this would be more a technical description of
  |   what is allowed in the field.
  |
  | o validators: there could be several levels of validation. Simple type validation could
  |   be done with a regex, but we need inter-field validation and rules which could be
  |   dealt with by something like drools.
  |
  | o i18n: would be good to be able to have names/descriptions/specifications

  * Now to edit a particular API version, provide the fully-qualify the resource, version, and group used to fetch the object (for example, `job.v1.batch/myjob`)
  * Client-side conversion is no longer done, and the `--output-version` option is deprecated for `kubectl edit`.
* `edit` works as intended with apply and will not change the annotation

    * and cloud_cidr_allocator. (ALPHA FEATURE)
    * Note: for this change, the other allocators still exist and are the default.
    * It supports two modes:
        * CIDR range allocations done within the cluster that are then propagated out to the cloud provider.
        * Cloud provider managed IPAM that is then reflected into the cluster.

* Allow for configuring etcd hostname in the manifest ([#54403](https://github.com/kubernetes/kubernetes/pull/54403), [@wojtek-t](https://github.com/wojtek-t))
* - kubeadm  will warn users if access to IP ranges for Pods or Services will be done via HTTP proxy. ([#52792](https://github.com/kubernetes/kubernetes/pull/52792), [@kad](https://github.com/kad))

- kubelet + DRA: For DRA driver plugins (and only for those!), the kubelet now supports a rolling update with `maxSurge > 0` in the driver's DaemonSet. A DRA driver must support this, which can be done via the k8s.io/dynamic-resource-allocation/kubeletplugin helper package. ([#129832](https://github.com/kubernetes/kubernetes/pull/129832), [@pohly](https://github.com/pohly)) [SIG Node, Storage and Testing]

  
  As this code is still very new, it has not been heavily optimized yet;
  while it is expected to _eventually_ have better performance than the
  iptables backend, very little performance testing has been done so far. ([#121046](https://github.com/kubernetes/kubernetes/pull/121046), [@danwinship](https://github.com/danwinship))

ains","a","b","bup","compareDocumentPosition","rcssescape","fcssescape","ch","asCodePoint","charCodeAt","escapeSelector","sel","preferredDoc","pushNative","Expr","outermostContext","sortInput","hasDuplicate","documentIsHTML","rbuggyQSA","dirruns","done","classCache","createCache","tokenCache","compilerCache","nonnativeSelectorCache","sortOrder","booleans","identifier","attributes","pseudos","rwhitespace","rcomma","rleadingCombinator","rdescend","rpseudo","ridentifier","matchExpr","ID","CLASS","T...

- A kubelet parameter and config option has been added to change the CFS quota period from the default 100ms to some other value between 1µs and 1s. This was done to improve response latencies for workloads running in clusters with guaranteed and burstable QoS classes. ([#63437](https://github.com/kubernetes/kubernetes/pull/63437), [@szuecs](https://github.com/szuecs)) Courtesy of SIG API Machinery, SIG Apps,...

* Added xfsprogs to hyperkube container image. ([#56937](https://github.com/kubernetes/kubernetes/pull/56937), [@redbaron](https://github.com/redbaron))

* Improved messages user gets during and after volume resizing is done, providing a clear message to the user explaining what to do when resizing is finished. ([#58415](https://github.com/kubernetes/kubernetes/pull/58415), [@gnufied](https://github.com/gnufied))