*   Fixed a set of minor issues with Cluster Autoscaler 1.0.1 ([#54298](https://github.com/kubernetes/kubernetes/pull/54298),[ @mwielgus](https://github.com/mwielgus))
*   HPA tolerance is now configurable by setting the `horizontal-pod-autoscaler-tolerance` flag. ([#52275](https://github.com/kubernetes/kubernetes/pull/52275),[ @mattjmcnaughton](https://github.com/mattjmcnaughton))

- Added a `/flagz` endpoint for kubelet endpoint ([#128857](https://github.com/kubernetes/kubernetes/pull/128857), [@zhifei92](https://github.com/zhifei92)) [SIG Architecture, Instrumentation and Node]

* fluentd will tolerate all NoExecute Taints when run in gcp configuration. ([#45715](https://github.com/kubernetes/kubernetes/pull/45715), [@gmarek](https://github.com/gmarek))

* Fixed controller manager crash by making it tolerant to discovery errors.([#49767](https://github.com/kubernetes/kubernetes/pull/49767), [@deads2k](https://github.com/deads2k))

- Kubeadm: tolerate whitespace when validating certificate authority PEM data in kubeconfig files ([#86705](https://github.com/kubernetes/kubernetes/pull/86705), [@neolit123](https://github.com/neolit123)) [SIG Cluster Lifecycle]

### Other notable changes

- `kubeadm`: will now allow deploying a kubelet that is 3 versions older than the version of `kubeadm` (N-3). This aligns with the recent change made by SIG Architecture that extends the support skew between the control plane and kubelets. Tolerate this new kubelet skew for the commands `init`, `join` and `upgrade`. Note that if the `kubeadm` user applies a control plane version that is older than the `kubeadm` version (N-1 maximum) then the skew between the kubelet and control plane would...

* fixes a validation error that could prevent updates to StatefulSet objects containing non-normalized resource requests ([#66165](https://github.com/kubernetes/kubernetes/pull/66165), [@liggitt](https://github.com/liggitt))
* Tolerate missing watch permission when deleting a resource ([#65370](https://github.com/kubernetes/kubernetes/pull/65370), [@deads2k](https://github.com/deads2k))

clusters, both the old taint `node-role.kubernetes.io/master:NoSchedule` and new taint `node-role.kubernetes.io/control-plane:NoSchedule` will be added to control plane nodes. In release 1.20 (`first stage`), a release note instructed to preemptively tolerate the new taint. For clusters that are being upgraded to 1.24 with `kubeadm upgrade apply`, the command will add the new taint `node-role.kubernetes.io/control-plane:NoSchedule` to existing control plane nodes. Please adapt your infrastructure to these...

  - Please adapt your workloads to tolerate the same future taint preemptively.
    
- Kubeadm: improve the validation of serviceSubnet and podSubnet.