## WARNING: etcd backup strongly recommended

Before updating to 1.6, you are strongly recommended to back up your etcd data.
Please consult the installation procedure you are using (kargo, kops, kube-up,
kube-aws, kubeadm etc) for specific advice.

1.6 encourages etcd3, and switching from etcd2 to etcd3 involves a full
migration of data between different storage engines.  You must stop the API

- The `--leader-elect*` CLI args are now honored in scheduler. ([#105915](https://github.com/kubernetes/kubernetes/pull/105915), [@Huang-Wei](https://github.com/Huang-Wei))
- The `--leader-elect*` CLI args are now honored in the scheduler. ([#105712](https://github.com/kubernetes/kubernetes/pull/105712), [@Huang-Wei](https://github.com/Huang-Wei))

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- 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.
  

- Kubeadm: Fixed a bug where the default args for etcd were not correct when a local etcd image was used and the etcd version was less than 3.6.0. ([#133023](https://github.com/kubernetes/kubernetes/pull/133023), [@carlory](https://github.com/carlory))

- 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))

  `To begin with,' said the Cat, `a dog's not mad.  You grant
that?'

  `I suppose so,' said Alice.

  `Well, then,' the Cat went on, `you see, a dog growls when it's
angry, and wags its tail when it's pleased.  Now I growl when I'm
pleased, and wag my tail when I'm angry.  Therefore I'm mad.'

  `I call it purring, not growling,' said Alice.

  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`.

* 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))

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