* Resource quotas on extended resources such as GPUs are now supported. ([#57302](https://github.com/kubernetes/kubernetes/pull/57302), [@lichuqiang](https://github.com/lichuqiang))

* If the TaintNodesByCondition is enabled, a node will be tainted when it is under PID pressure.  ([#60008](https://github.com/kubernetes/kubernetes/pull/60008), [@k82cn](https://github.com/k82cn))

* A new `TaintNodesByCondition` admission plugin taints newly created Node objects as "not ready", to fix a race condition that could cause pods to be scheduled on new nodes before their taints were updated to accurately reflect their reported conditions. This admission plugin is enabled by default if the `TaintNodesByCondition` feature is enabled. ([#73097](https://github.com/kubernetes/kubernetes/pull/73097), [@bs...