- Kube-apiserver now maintains a Lease object to identify itself: 
  - The feature is under feature gate `APIServerIdentity`. 

[https://github.com/kubernetes/kubernetes/issues/49213](https://github.com/kubernetes/kubernetes/issues/49213) sig-cluster-lifecycle has decided to phase out the cluster/ directory over the next couple of releases in favor of deployment automations maintained outside of the core repo and outside of kubernetes orgs. ([@kubernetes/sig-cluster-lifecycle-misc](https://github.com/orgs/kubernetes/teams/sig-cluster-lifecycle-misc))

    * Remove deprecated ContainerVM support from GCE kube-up. ...

* Add ready replicas in Deployments ([#37959](https://github.com/kubernetes/kubernetes/pull/37959), [@kargakis](https://github.com/kargakis))
* Remove all MAINTAINER statements in Dockerfiles in the codebase as they are deprecated by docker ([#38927](https://github.com/kubernetes/kubernetes/pull/38927), [@luxas](https://github.com/luxas))

* The Rackspace cloud provider has been removed after a long deprecation period. It was deprecated because it duplicates a lot of the OpenStack logic and can no longer be maintained. Please use the OpenStack cloud provider instead. ([#52855](https://github.com/kubernetes/kubernetes/pull/52855), [@NickrenREN](https://github.com/NickrenREN))

and looks for type arguments for those type parameters such that the LHS
and RHS match (become identical or assignment-compatible, depending on
context).
To that effect, type inference maintains a map of bound type parameters
to inferred type arguments; this map is consulted and updated during type unification.
Initially, the bound type parameters are known but the map is empty.

- Kubeadm: The ClusterStatus struct present in the kubeadm-config ConfigMap is deprecated and will be removed on a future version. It is going to be maintained by kubeadm until it gets removed. The same information can be found on `etcd` and `kube-apiserver` pod annotations, `kubeadm.kubernetes.io/etcd.advertise-client-urls` and `kubeadm.kubernetes.io/kube-apiserver.advertise-address.endpoint` respectively....

interact with low-level edwards25519 // operations can use filippo.io/edwards25519, an extended version of this // package repackaged as an importable module. // // (Note that filippo.io/edwards25519 and github.com/gtank/ristretto255 are not // maintained by the Go team and are not covered by the Go 1 Compatibility Promise.) package edwards25519 golang.org/fips140@v1.0.0-c2097c7c/fips140/v1.0.0-c2097c7c/edwards25519/edwards25519.go // Copyright (c) 2017 The Go Authors. All rights reserved. // Use...

interact with low-level edwards25519 // operations can use filippo.io/edwards25519, an extended version of this // package repackaged as an importable module. // // (Note that filippo.io/edwards25519 and github.com/gtank/ristretto255 are not // maintained by the Go team and are not covered by the Go 1 Compatibility Promise.) package edwards25519 golang.org/fips140@v1.1.0-rc1/fips140/v1.1.0-rc1/edwards25519/edwards25519.go // Copyright (c) 2017 The Go Authors. All rights reserved. // Use of this source...