e, address, and port flags have been removed and replaced by bind-address, insecure-bind-address, and insecure-port, respectively. They are marked as deprecated in [#36604](https://github.com/kubernetes/kubernetes/pull/36604), which is more than a year ago.  ([#59018](https://github.com/kubernetes/kubernetes/pull/59018), [@hzxuzhonghu](https://github.com/hzxuzhonghu))

* The alpha `--init-config-dir` flag has been removed. Instead, use the `--config` flag to reference a kubelet configuration...

  controller loop removes service account token secrets that have not been used
  in the time specified by `--legacy-service-account-token-clean-up-period` (defaulting
  to one year), **and are** referenced from the `.secrets` list of a ServiceAccount
  object, **and are not** referenced from pods. ([#115554](https://github.com/kubernetes/kubernetes/pull/115554), [@yt2985](https://github.com/yt2985))

We continue to improve the UX for the svcat CLI, specifically filling in gaps for the new Namespaced Service Broker feature.

### SIG Storage

We all have to adapt to change in our lives, and especially so in the past year. The Kubernetes release team was also affected from the COVID-19 pandemic and has listened to its user base regarding the number of releases in a calendar year. From April 23, 2021 it was made official that Kubernetes release cadence has reduced from 4 releases per year to 3 releases per year.

    - [Dashboard v2](#dashboard-v2)
    - [Windows containerd support graduates to beta](#windows-containerd-support-graduates-to-beta)
    - [Increase the Kubernetes support window to one year](#increase-the-kubernetes-support-window-to-one-year)
  - [Known Issues](#known-issues)
  - [Urgent Upgrade Notes](#urgent-upgrade-notes)
    - [(No, really, you MUST read this before you upgrade)](#no-really-you-must-read-this-before-you-upgrade)

- `kubeadm.k8s.io/v1beta2` has been deprecated and will be removed in a future release, possibly in 3 releases (one year). You should start using `kubeadm.k8s.io/v1beta3` for new clusters. To migrate your old configuration files on disk you can use the `kubeadm config migrate` command. ([#107013](https://github.com/kubernetes/kubernetes/pull/107013), [@pacoxu](https...

PID Limits features are now generally available on both `SupportNodePidsLimit` (node-to-pod PID isolation) and `SupportPodPidsLimit` (ability to limit PIDs per pod), after being enabled-by-default in beta stage for a year.

### API Priority and Fairness graduates to Beta

time specified by `--legacy-service-account-token-clean-up-period` (defaulting to one year), **and** are referenced from the `.secrets` list of a ServiceAccount object, **and**  are not referenced from pods. This label causes the authentication layer to reject use of the credentials. After being labeled as invalid, if the time specified by `--legacy-service-account-token-clean-up-period` (defaulting to one year) passes without the credential being used, the secret is automatically deleted. Secrets...

- Graduated `ServiceInternalTrafficPolicy` feature to GA. ([#113496](https://github.com/kubernetes/kubernetes/pull/113496), [@avoltz](https://github.com/avoltz))
- In `kube-proxy`: The "userspace" proxy mode (deprecated for over a year) is no
  longer supported on either Linux or Windows. Users should use "iptables" or "ipvs"
  on Linux, or "kernelspace" on Windows.