* Allow specifying secret data using strings ([#28263](https://github.com/kubernetes/kubernetes/pull/28263), [@liggitt](https://github.com/liggitt))
* kubectl help now provides "Did you mean this?" suggestions for typo/invalid command names. ([#27049](https://github.com/kubernetes/kubernetes/pull/27049), [@andreykurilin](https://github.com/andreykurilin))

* The deprecated kubelet --configure-cbr0 flag has been removed, and with that the "classic" networking mode as well.  If you depend on this mode, please investigate whether the other network plugins `kubenet` or `cni` meet your needs. ([#34906](https://github.com/kubernetes/kubernetes/pull/34906), [@luxas](https://github.com/luxas))

science

// scot : 2014-01-23 Dot Scot Registry Limited
scot

// search : 2016-06-09 Charleston Road Registry Inc.
search

// seat : 2014-05-22 SEAT, S.A. (Sociedad Unipersonal)
seat

// secure : 2015-08-27 Amazon Registry Services, Inc.
secure

// security : 2015-05-14 XYZ.COM LLC
security

// seek : 2014-12-04 Seek Limited
seek

- DRA: ResourceClaim and PodSchedulingContext status updates no longer allow changing object meta data. ([#123730](https://github.com/kubernetes/kubernetes/pull/123730), [@pohly](https://github.com/pohly))

- Promoted meta.k8s.io/v1beta1 Table and PartialObjectMetadata to v1. ([#77136](https://github.com/kubernetes/kubernetes/pull/77136), [@smarterclayton](https://github.com/smarterclayton))

med.ly med.om med.pa med.pl med.pro med.sa med.sd medecin.fr medecin.km media media.aero media.hu media.museum media.pl mediatech.by mediatech.dev medical.museum medicina.bo medio-campidano.it mediocampidano.it medizinhistorisches.museum meeres.museum meet meguro.tokyo.jp mein-iserv.de mein-vigor.de meinforum.net meiwa.gunma.jp meiwa.mie.jp mel.cloudlets.com.au meland.no melbourne meldal.no melhus.no meloy.no meløy.no members.linode.com meme memorial memorial.museum memset.net men menu meraker.no merckmsd...

### Documentation

- Feat: azure file migration go beta in 1.21. Feature gates CSIMigration to Beta (on by default) and CSIMigrationAzureFile to Beta (off by default since it requires installation of the AzureFile CSI Driver)

- Expose a `NewUnstructuredExtractor` from apply configurations `meta/v1` package that enables extracting objects into unstructured apply configurations. ([#103564](https://github.com/kubernetes/kubernetes/pull/103564), [@kevindelgado](https://github.com/kevindelgado))

- Feat: change parittion style to GPT on Windows ([#101412](https://github.com/kubernetes/kubernetes/pull/101412), [@andyzhangx](https://github.com/andyzhangx)) [SIG Storage and Windows]

the metadata (the `metadata` sub-section) from resources on the cluster in an efficient manner for use cases that deal with objects generically, like the garbage collector, quota, or the namespace controller. The client asks the server to return a `meta.k8s.io/v1 PartialObjectMetadata` object for list, get, delete, watch, and patch operations on both normal APIs and custom resources which can be encoded in protobuf for additional work. If the server does not yet support this API the client will gracefully...