([#64102](https://github.com/kubernetes/kubernetes/pull/64102), [@atombender](https://github.com/atombender))
* Added support for NFS relations on kubernetes-worker charm. ([#63817](https://github.com/kubernetes/kubernetes/pull/63817), [@hyperbolic2346](https://github.com/hyperbolic2346))

- "unfinished_work_microseconds" is added to the workqueue metrics; it can be used to detect stuck worker threads. (kube-controller-manager runs many workqueues.) ([#70884](https://github.com/kubernetes/kubernetes/pull/70884), [@lavalamp](https://github.com/lavalamp))

- [`KT-57317`](https://youtrack.jetbrains.com/issue/KT-57317) Repack EnumEntries from stdlib into the compiler
- [`KT-54702`](https://youtrack.jetbrains.com/issue/KT-54702) Native: mark Worker and related APIs as obsolete
- [`KT-55610`](https://youtrack.jetbrains.com/issue/KT-55610) Deprecate kotlin.jvm.Volatile annotation in platforms except JVM

- The `kube-controller-manager` supports `--concurrent-ephemeralvolume-syncs` flag to set the number of ephemeral volume controller workers. ([#102981](https://github.com/kubernetes/kubernetes/pull/102981), [@SataQiu](https://github.com/SataQiu))

- Fixed a data race in kubelet image manager that can cause static pod workers to silently stop working. ([#88915](https://github.com/kubernetes/kubernetes/pull/88915), [@roycaihw](https://github.com/roycaihw)) [SIG Node]

- Fixes high CPU usage in kubectl drain ([#95260](https://github.com/kubernetes/kubernetes/pull/95260), [@amandahla](https://github.com/amandahla)) [SIG CLI]
- For vSphere Cloud Provider, If VM of worker node is deleted, the node will also be deleted by node controller ([#92608](https://github.com/kubernetes/kubernetes/pull/92608), [@lubronzhan](https://github.com/lubronzhan)) [SIG Cloud Provider]

### AWS

* Add AWS cloud provider option to use an assumed IAM role. For example, this allows running Controller Manager in a account separate from the worker nodes, but still allows all resources created to interact with the workers. ELBs created would be in the same account as the worker nodes for instance.([#59668](https://github.com/kubernetes/kubernetes/pull/59668), [@brycecarman](https://github.com/brycecarman))

- Fixed a data race in kubelet image manager that can cause static pod workers to silently stop working. ([#88915](https://github.com/kubernetes/kubernetes/pull/88915), [@roycaihw](https://github.com/roycaihw)) [SIG Node]

*   Fixed iptables FORWARD policy for Docker 1.13 in kubernetes-worker charm ([#54796](https://github.com/kubernetes/kubernetes/pull/54796),[ @Cynerva](https://github.com/Cynerva))

      - `kubelet_pod_worker_latency_microseconds` -> `kubelet_pod_worker_duration_seconds`
      - `kubelet_pod_start_latency_microseconds` -> `kubelet_pod_start_duration_seconds`
      - `kubelet_cgroup_manager_latency_microseconds` -> `kubelet_cgroup_manager_duration_seconds`
      - `kubelet_pod_worker_start_latency_microseconds` -> `kubelet_pod_worker_start_duration_seconds`