* Fixes issue where subpath readOnly mounts failed ([#63045](https://github.com/kubernetes/kubernetes/pull/63045), [@msau42](https://github.com/msau42))
* Add MAX_PODS_PER_NODE env so that GCE/GKE user can use it to specify the default max pods per node for the cluster. IP_ALIAS_SIZE will be changed accordingly. Must have ip alias enabled. ([#63621](https://github.com/kubernetes/kubernetes/pull/63621), [@grayluck](https://github.com/grayluck))

* corrects a race condition in bootstrapping aggregated cluster roles in new HA clusters ([#63761](https://github.com/kubernetes/kubernetes/pull/63761), [@liggitt](https://github.com/liggitt))
* Add MAX_PODS_PER_NODE env so that GCE/GKE user can use it to specify the default max pods per node for the cluster. IP_ALIAS_SIZE will be changed accordingly. Must have ip alias enabled. ([#63451](https://github.com/kubernetes/kubernetes/pull/63451), [@grayluck](https://github.com/grayluck))

- Node `ipam` controller now exposes metrics `cidrset_cidrs_max_total` and `multicidrset_cidrs_max_total` with information about the max number of CIDRs that can be allocated. ([#112260](https://github.com/kubernetes/kubernetes/pull/112260), [@aryan9600](https://github.com/aryan9600))

### Feature

- Fix calling AttachDisk on a previously attached EBS volume ([#93567](https://github.com/kubernetes/kubernetes/pull/93567), [@gnufied](https://github.com/gnufied)) [SIG Cloud Provider, Storage and Testing]
- Fix: incorrect max azure disk max count ([#92331](https://github.com/kubernetes/kubernetes/pull/92331), [@andyzhangx](https://github.com/andyzhangx)) [SIG Cloud Provider and Storage]

* kubeadm: add back `--cert-dir` option for `kubeadm init phase certs sa` ([#73239](https://github.com/kubernetes/kubernetes/pull/73239), [@mattkelly](https://github.com/mattkelly))
* Scale max-inflight limits together with master VM sizes. ([#73268](https://github.com/kubernetes/kubernetes/pull/73268), [@wojtek-t](https://github.com/wojtek-t))

## Changelog since v1.8.12

### Other notable changes

* Add MAX_PODS_PER_NODE env so that user can use it to specify the default max pods per node for the cluster. IP_ALIAS_SIZE will be changed accordingly. Must have ip alias enabled. ([#63466](https://github.com/kubernetes/kubernetes/pull/63466), [@grayluck](https://github.com/grayluck))

- Updated kube-apiserver's priority & fairness work estimator such that 'max seats' is MIN(0.15 x nominalCL, nominalCL / handSize)
  

- Fix: get attach disk error due to missing item in max count table ([#89768](https://github.com/kubernetes/kubernetes/pull/89768), [@andyzhangx](https://github.com/andyzhangx)) [SIG Cloud Provider and Storage]
- Fix: incorrect max azure disk max count ([#92331](https://github.com/kubernetes/kubernetes/pull/92331), [@andyzhangx](https://github.com/andyzhangx)) [SIG Cloud Provider and Storage]

- Update kube-apiserver's priority & fairness work estimator such that 'max seats' is MIN(0.15 x nominalCL, nominalCL / handSize)