- Kubectl now handles newlines for `command`, `args`, `env`, and `annotations` in `kubectl describe` wrapping. ([#66841](https://github.com/kubernetes/kubernetes/pull/66841), [@smarterclayton](https://github.com/smarterclayton))

  When running test/e2e via the Ginkgo CLI, the v2 CLI must be used and `-timeout=24h` (or some other, suitable value) must be passed because the default timeout was reduced from 24h to 1h. When running it via `go test`, the corresponding `-args` parameter is `-ginkgo.timeout=24h`. To build the CLI in the Kubernetes repo, use `make all WHAT=github.com/onsi/ginkgo/v2/ginkgo`.

- Kubectl: Previously users cannot provide arguments to a external diff tool via KUBECTL_EXTERNAL_DIFF env. This release now allow users to specify args to KUBECTL_EXTERNAL_DIFF env. ([#95292](https://github.com/kubernetes/kubernetes/pull/95292), [@dougsland](https://github.com/dougsland)) [SIG CLI]

  
  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  - The "JoinConfiguration.discovery.timeout" field has been replaced by "JoinConfiguration.timeouts.discovery".

- Alowed useful inclusion of `-args $prog_args` in KUBE_TEST_ARGS, when doing `make test-integration`. ([#107516](https://github.com/kubernetes/kubernetes/pull/107516), [@MikeSpreitzer](https://github.com/MikeSpreitzer))

 - Upgrade kubescheduler.config.k8s.io/v1alpha2 to kubescheduler.config.k8s.io/v1beta1
  
   - `.bindTimeoutSeconds` was moved as part of plugin args for `VolumeBinding`,
     which can be configured separately per profile.
   - `.extenders` are updated to satisfy API standards. In particular:
     - `.extenders` decoding is case sensitive. All fields are affected.

* kubeadm: add back `--cert-dir` option for `kubeadm init phase certs sa` ([#73239](https://github.com/kubernetes/kubernetes/pull/73239), [@mattkelly](https://github.com/mattkelly))
* Remove deprecated args '--show-all' ([#69255](https://github.com/kubernetes/kubernetes/pull/69255), [@Pingan2017](https://github.com/Pingan2017))

* Fix corner-case with OnlyLocal Service healthchecks. ([#44313](https://github.com/kubernetes/kubernetes/pull/44313), [@thockin](https://github.com/thockin))
* Fix for [disabling federation controllers through override args](https://github.com/kubernetes/kubernetes/issues/42761). ([#44341](https://github.com/kubernetes/kubernetes/pull/44341), [@irfanurrehman](https://github.com/irfanurrehman))