Burstable QoS pods. For Best-Effort/Guaranteed QoS pods, swap would be disabled.
  
  Containers with memory requests equal to their memory limits also won't have
  swap access, and it is a way to opt-out of swap for a single container.
  
  The formula for the swap limit for Burstable QoS pods is:
  `(<memory-request>/<node-memory-capacity>)*<node-swap-capacity>`.
  

  - scrape_error --> scrape_error
  - node_cpu_usage_seconds_total --> node_cpu_usage_seconds
  - node_memory_working_set_bytes --> node_memory_working_set_bytes
  - container_cpu_usage_seconds_total --> container_cpu_usage_seconds
  - container_memory_working_set_bytes --> container_memory_working_set_bytes
  - scrape_error --> scrape_error 

- kube-controller-manager currently needs a writable `--cert-dir` (default...

* Fix a scalability issue where high rates of event writes degraded etcd performance. ([#64539](https://github.com/kubernetes/kubernetes/pull/64539), [@ccding](https://github.com/ccding))
* fixes a memory leak in the kube-controller-manager observed when large numbers of pods with tolerations are created/deleted ([#65339](https://github.com/kubernetes/kubernetes/pull/65339), [@liggitt](https://github.com/liggitt))

- Following metrics from kubelet are now marked as with the ALPHA stability level:
  `node_cpu_usage_seconds_total`
  `node_memory_working_set_bytes`
  `container_cpu_usage_seconds_total`
  `container_memory_working_set_bytes`
  `scrape_error`
  ([#84987](https://github.com/kubernetes/kubernetes/pull/84987), [@RainbowMango](https://github.com/RainbowMango))

* Fixes a bug where kubelet crashes trying to free memory under memory pressure. ([#58574](https://github.com/kubernetes/kubernetes/pull/58574), [@yastij](https://github.com/yastij))

* Get windows kernel version directly from registry ([#58498](https://github.com/kubernetes/kubernetes/pull/58498), [@feiskyer](https://github.com/feiskyer))
* Fixes a bug where kubelet crashes trying to free memory under memory pressure ([#58574](https://github.com/kubernetes/kubernetes/pull/58574), [@yastij](https://github.com/yastij))

- EmptyDir memory backed volumes are sized as the minimum of pod allocatable memory on a host and an optional explicit user provided value. ([#100319](https://github.com/kubernetes/kubernetes/pull/100319), [@derekwaynecarr](https://github.com/derekwaynecarr)) [SIG Node]

- Fix: the volume is not detached after the pod and PVC objects are deleted ([#117236](https://github.com/kubernetes/kubernetes/pull/117236), [@cvvz](https://github.com/cvvz)) [SIG Storage]
- Fixed a memory leak in the Kubernetes API server that occurs during APIService processing. ([#117310](https://github.com/kubernetes/kubernetes/pull/117310), [@enj](https://github.com/enj)) [SIG API Machinery]

* Fixed pod cleanup when /var/lib/kubelet is a symlink. ([#68741](https://github.com/kubernetes/kubernetes/pull/68741), [@jsafrane](https://github.com/jsafrane))
* Add "only_cpu_and_memory" GET parameter to /stats/summary http handler in kubelet. If parameter is true then only cpu and memory will be present in response. ([#67829](https://github.com/kubernetes/kubernetes/pull/67829), [@krzysztof-jastrzebski](https://github.com/krzysztof-jastrzebski))