- Added `get-users` and `delete-user` to the `kubectl config` subcommand ([#89840](https://github.com/kubernetes/kubernetes/pull/89840), [@eddiezane](https://github.com/eddiezane)) [SIG CLI]

- Kube-apiserver metrics will now include request counts, latencies, and response sizes for /healthz, /livez, and /readyz requests. ([#83598](https://github.com/kubernetes/kubernetes/pull/83598), [@jktomer](https://github.com/jktomer)) [SIG API Machinery]

- 1. When the kubelet constructs the CRI mounts for the container which references an `image` volume source type, it passes the missing mount attributes to the CRI implementation, including `readOnly`, `propagation`, and `recursiveReadOnly`. When the readOnly field of the containerMount is explicitly set to false, the kubelet will now take the `readOnly`as true to the CRI implementation because the image volume plugin requires the mount to be read-only.

  
  Also, compute the backoff delay more accurately for deleted pods. ([#119466](https://github.com/kubernetes/kubernetes/pull/119466), [@mimowo](https://github.com/mimowo)) [SIG Apps]

- The `goroutines` metric is newly added in the scheduler. 
  It replaces `scheduler_goroutines` metric and it counts the number of goroutine in more places than `scheduler_goroutine` does. ([#112003](https://github.com/kubernetes/kubernetes/pull/112003), [@sanposhiho](https://github.com/sanposhiho)) [SIG Instrumentation and Scheduling]

 - `ServiceNodeExclusion`, `NodeDisruptionExclusion` and...

- Added a new Prometheus counter metric `sync_proxy_rules_iptables_restore_failures_total` for kube-proxy iptables-restore failures (both ipvs and iptables modes)
  ([#81210](https://github.com/kubernetes/kubernetes/pull/81210), [@figo](https://github.com/figo))

- Faster mount detection for linux kernel 5.10+ using openat2 speeding up pod churn rates. On Kernel versions less 5.10, it will fallback to using the original way of detecting mount points i.e by parsing /proc/mounts. ([#109217](https://github.com/kubernetes/kubernetes/pull/109217), [@manugupt1](https://github.com/manugupt1))

  - *apiserver_cache_list_returned_objects_total*: Counter of objects returned for a LIST request from watch cache, broken down by resource_prefix
  - *apiserver_storage_list_total*: Counter of LIST requests served from etcd, broken down by resource

- Kubelet now hard rejects pods with AppArmor if the node does not have AppArmor. ([#125776](https://github.com/kubernetes/kubernetes/pull/125776), [@vinayakankugoyal](https://github.com/vinayakankugoyal))
- Mount-utils: treated syscall.ENODEV as corrupted mount. ([#126174](https://github.com/kubernetes/kubernetes/pull/126174), [@dobsonj](https://github.com/dobsonj))