* --alpha-endpoint-reconciler-type=(master-count, lease, none) (default
    * "master-count"). The original reconciler is 'master-count'. The 'lease'
    * reconciler uses the storageapi and a TTL to keep alive an endpoint within the
    * `kube-apiserver-endpoint` storage namespace. The 'none' reconciler is a noop

* kube-apiserver: the default `--endpoint-reconciler-type` is now `lease`. The `master-count` endpoint reconciler type is deprecated and will be removed in 1.13. ([#63383](https://github.com/kubernetes/kubernetes/pull/63383), [@liggitt](https://github.com/liggitt))

// https://www.iana.org/domains/root/db/lawyer.html
lawyer

// lds : IRI Domain Management, LLC
// https://www.iana.org/domains/root/db/lds.html
lds

// lease : Binky Moon, LLC
// https://www.iana.org/domains/root/db/lease.html
lease

// leclerc : A.C.D. LEC Association des Centres Distributeurs Edouard Leclerc
// https://www.iana.org/domains/root/db/leclerc.html
leclerc

  KEPs or supporting documentation, please reference a specific commit and avoid
  linking directly to the master branch. This ensures that links reference a
  specific point in time, rather than a document that may change over time.
  
  See here for guidance on getting permanent links to files: https://help.github.com/en/articles/getting-permanent-links-to-files
  
  Please use the following format for linking documentation:

latrobe
lavagis.no
lavangen.no
law
law.pro
law.za
lawyer
laz.it
lazio.it
lb
lc
lc.it
lcube-server.de
lds
le.it
leadpages.co
leangaviika.no
lease
leasing.aero
leaŋgaviika.no
lebesby.no
lebork.pl
lebtimnetz.de
lecce.it
lecco.it
leclerc
leczna.pl
lefrak
leg.br
legal
legnica.pl
lego
leikanger.no

- The `v1` version of `LeaderMigrationConfiguration` supports only `leases` API for leader election. To use formerly supported mechanisms, please continue using `v1beta1`. ([#108016](https://github.com/kubernetes/kubernetes/pull/108016), [@jiahuif](https://github.com/jiahuif))

#### kubelet:
- `--enable-cadvisor-json-endpoints` is now disabled by default. If you need access to the cAdvisor v1 Json API please enable it explicitly in the kubelet command line. Please note that this flag was deprecated in 1.15 and will be removed in 1.19. ([#87440](https://github.com/kubernetes/kubernetes/pull/87440), [@dims](https://github.com/dims)) [SIG Instrumentation, Node and Testing]

    try {
      insert(e);
    } finally {
      monitor.leave();
    }
  }

  @CanIgnoreReturnValue
  @Override
  public @Nullable E poll() {
    Monitor monitor = this.monitor;
    if (monitor.enterIf(notEmpty)) {
      try {
        return extract();
      } finally {
        monitor.leave();
      }
    } else {
      return null;
    }
  }

- Kubeadm: deprecate the "kubeadm alpha kubelet config enable-dynamic" command. To continue using the feature please defer to the guide for "Dynamic Kubelet Configuration" at k8s.io. ([#92881...

  KEPs or supporting documentation, please reference a specific commit and avoid
  linking directly to the master branch. This ensures that links reference a
  specific point in time, rather than a document that may change over time.
  
  See here for guidance on getting permanent links to files: https://help.github.com/en/articles/getting-permanent-links-to-files
  
  Please use the following format for linking documentation: