- Fix the problem where couple nodes becoming NotReady at the same time could cause master instability or even complete outage in large enough clusters. ([#88962](https://github.com/kubernetes/kubernetes/pull/88962), [@mborsz](https://github.com/mborsz)) [SIG Apps]

* Fix aggressive VM calls for Azure VMSS ([#83102](https://github.com/kubernetes/kubernetes/pull/83102), [@feiskyer](https://github.com/feiskyer))

- Kube-apiserver: `gzip` compression switched from level 4 to level 1 to improve large list call latencies in exchange for higher network bandwidth usage (10-50% higher). This increases the headroom before very large unpaged list calls exceed request timeout limits. ([#112299](https://github.com/kubernetes/kubernetes/pull/112299), [@shyamjvs](https://github.com/shyamjvs))

* Never prevent deletion of resources as part of namespace lifecycle ([#48733](https://github.com/kubernetes/kubernetes/pull/48733), [@liggitt](https://github.com/liggitt))
* AWS cloudprovider plugin: Fix for large clusters (200+ nodes). Also fix bug with volumes not getting detached from a node after reboot. ([#48312](https://github.com/kubernetes/kubernetes/pull/48312), [@gnufied](https://github.com/gnufied))

- KCCM: fixed transient node addition and removal caused by #121090 while syncing load balancers on large clusters with a lot of churn. ([#121091](https://github.com/kubernetes/kubernetes/pull/121091), [@alexanderConstantinescu](https://github.com/alexanderConstantinescu))