- E2e framework: retrying after intermittent `apiserver` failures was fixed in `WaitForPodsResponding` ([#120559](https://github.com/kubernetes/kubernetes/pull/120559), [@pohly](https://github.com/pohly))

- Support more than 100 disk mounts on Windows (#105673, @andyzhangx) [SIG Storage and Windows]
- The --leader-elect* CLI args are now honored correctly in scheduler. (#106130, @Huang-Wei) [SIG Scheduling]
- The kube-proxy sync_proxy_rules_iptables_total metric now gives
  the correct number of rules, rather than being off by one.
  

- 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))

  (at the cost of an occasional pod being scheduled non-optimally/violating existing
  pods preferred inter-pod affinities). To enable this scheduler option, set the
  `InterPodAffinity` scheduler plugin arg `ignorePreferredTermsOfExistingPods: true` ([#114393](https://github.com/kubernetes/kubernetes/pull/114393), [@danielvegamyhre](https://github.com/danielvegamyhre))

pkg expvar, type Var interface, String() string
pkg flag, const ContinueOnError ErrorHandling
pkg flag, const ExitOnError ErrorHandling
pkg flag, const PanicOnError ErrorHandling
pkg flag, func Arg(int) string
pkg flag, func Args() []string
pkg flag, func Bool(string, bool, string) *bool
pkg flag, func BoolVar(*bool, string, bool, string)
pkg flag, func Duration(string, time.Duration, string) *time.Duration

* 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))

  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]

- 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.