- kubeadm: Use generic terminology in logs instead of direct mentions of YAML/JSON  ([#130345](https://github.com/kubernetes/kubernetes/pull/130345), [@HirazawaUi](https://github.com/HirazawaUi))
- kubeadm: removed preflight check for `ip`, `iptables`, `ethtool` and `tc` on Linux nodes. 

- Clarified the description of a test in the e2e suite that mentions "SCTP" but is
  actually intended to be testing the behavior of network plugins that don't
  implement SCTP. ([#102509](https://github.com/kubernetes/kubernetes/pull/102509), [@danwinship](https://github.com/danwinship))

// http://www.domaine.km/documents/charte.doc
km
org.km
nom.km
gov.km
prd.km
tm.km
edu.km
mil.km
ass.km
com.km
// These are only mentioned as proposed suggestions at domaine.km, but
// https://www.iana.org/domains/root/db/km.html says they're available for registration:
coop.km
asso.km
presse.km
medecin.km
notaires.km
pharmaciens.km

This section provides an overview of deprecated API versions, options, flags, and arguments. Deprecated means that we intend to remove the capability from a future release. After removal, the capability will no longer work. The sections are organized by SIGs.

### Apps

- The `.spec.rollbackTo` field of the Deployment kind is deprecated in `extensions/v1beta1`.

* Add per-pod scheduling metrics across 1 or more schedule attempts. ([#83674](https://github.com/kubernetes/kubernetes/pull/83674), [@liu-cong](https://github.com/liu-cong))
* Fix validation message to mention bytes, not characters. ([#80880](https://github.com/kubernetes/kubernetes/pull/80880), [@DirectXMan12](https://github.com/DirectXMan12))

* fix --save-config in create subcommand ([#40289](https://github.com/kubernetes/kubernetes/pull/40289), [@xilabao](https://github.com/xilabao))
* We should mention the caveats of in-place upgrade in release note. ([#40727](https://github.com/kubernetes/kubernetes/pull/40727), [@Random-Liu](https://github.com/Random-Liu))

- Kube-apiserver --help flag help is now printed in sections. ([#64517](https://github.com/kubernetes/kubernetes/pull/64517), [@sttts](https://github.com/sttts))

- Mount-utils: Detect potential stale file handle ([#106988](https://github.com/kubernetes/kubernetes/pull/106988), [@andyzhangx](https://github.com/andyzhangx)) [SIG Storage]
- The feature gate was mentioned as `csiMigrationRBD` where it should have been `CSIMigrationRBD` to be in parity with other migration plugins. This release correct the same and keep it as `CSIMigrationRBD`.
  

### Bug or Regression

- Fixed in-tree to CSI migration for Portworx volumes, in clusters where Portworx security feature is enabled (it's a Portworx feature, not Kubernetes feature). It required secret data from the secret mentioned in-tree SC, to be passed in CSI requests which was not happening before this fix. ([#129674](https://github.com/kubernetes/kubernetes/pull/129674), [@gohilankit](https://github.com/gohilankit)) [SIG Storage]

This section provides an overview of deprecated API versions, options, flags, and arguments. Deprecated means that we intend to remove the capability from a future release. After removal, the capability will no longer work. The sections are organized by SIGs.

### **API Machinery**