America/Panama America/Pangnirtung America/Paramaribo America/Phoenix America/Port-au-Prince America/Port_of_Spain America/Porto_Acre America/Porto_Velho America/Puerto_Rico America/Punta_Arenas America/Rainy_River America/Rankin_Inlet America/Recife America/Regina America/Resolute America/Rio_Branco America/Rosario America/Santa_Isabel America/Santarem America/Santiago America/Santo_Domingo America/Sao_Paulo America/Scoresbysund America/Shiprock America/Sitka America/St_Barthelemy America/St_Johns America/St_Kitts...

- Added a mechanism for configurable container restarts: _container-level restart rules_. This was an alpha feature behind the `ContainerRestartRules` feature gate. ([#132642](https://github.com/kubernetes/kubernetes/pull/132642), [@yuanwang04](https://github.com/yuanwang04)) [SIG API Machinery, Apps, Node and Testing]

- All containers are restarted when a source container in a restart policy rule exits. This alpha feature is gated behind `RestartAllContainersOnContainerExit`. ([#134345](https://github.com/kubernetes/kubernetes/pull/134345), [@yuanwang04](https://github.com/yuanwang04)) [SIG Apps, Node and Testing]

- Kube-proxy's IPVS proxy mode no longer sets the net.ipv4.conf.all.route_localnet sysctl parameter. Nodes upgrading will have net.ipv4.conf.all.route_localnet set to 1 but new nodes will inherit the system default (usually 0). If you relied on any behavior requiring net.ipv4.conf.all.route_localnet, you must set ensure it is enabled as kube-proxy will no longer set it automatically. This change helps to further mitigate CVE-2020-8558. ([#92938](https://github.com/kubernetes/kubernetes/pull/92938),...

- Added a new `ipMode` field to the `.status` of Services where `type` is set to `LoadBalancer`.
  The new field is behind the `LoadBalancerIPMode` feature gate. ([#119937](https://github.com/kubernetes/kubernetes/pull/119937), [@RyanAoh](https://github.com/RyanAoh)) [SIG API Machinery, Apps, Cloud Provider, Network and Testing]

- Implement the scheduling framework with `Reserve`, `Prebind`, `Permit`, `Post-bind`, `Queue sort` and `Unreserve` extension points.
([#77567](https://github.com/kubernetes/kubernetes/pull/77567), [@wgliang](https://github.com/wgliang))

- Revised the Pod API with Alpha support for volumes derived from OCI artifacts. This feature is behind the `ImageVolume` feature gate. ([#125660](https://github.com/kubernetes/kubernetes/pull/125660), [@saschagrunert](https://github.com/saschagrunert)) [SIG API Machinery, Apps and Node]

### Scheduling

- Improved fairness of the scheduling queue by placing pods which are attempted recently behind other pods with the same priority. ([#73700](https://github.com/kubernetes/kubernetes/pull/73700), [@denkensk](https://github.com/denkensk))

	* Support running Ubuntu image on GCE node ([#44744](https://github.com/kubernetes/kubernetes/pull/44744), [@yguo0905](https://github.com/yguo0905))

  * The gce metadata server can now be hidden behind a proxy, hiding the kubelet's token. ([#45565](https://github.com/kubernetes/kubernetes/pull/45565), [@Q-Lee](https://github.com/Q-Lee))

* OpenStack:

*   Apply algorithm in scheduler by feature gates. ([#52723](https://github.com/kubernetes/kubernetes/pull/52723),[ @k82cn](https://github.com/k82cn))