* Azure VMSS: support VM names to contain the `_` character ([#63526](https://github.com/kubernetes/kubernetes/pull/63526), [@djsly](https://github.com/djsly))

* Default mount propagation has changed from `HostToContainer` ("rslave" in Linux terminology), as it was in 1.10, to `None` ("private") to match the behavior in 1.9 and earlier releases; `HostToContainer` as a default caused regressions in some pods. If you are relying on this behavior you will need to set it explicitly....

  * No longer updates the last-applied-configuration annotation when --save-config is unspecified or false. ([#41924](https://github.com/kubernetes/kubernetes/pull/41924), [@ymqytw](https://github.com/ymqytw))
  * Fixes issue that caused apply to revert changes made by edit

#### Bug fixes

// https://www.iana.org/domains/root/db/sarl.html
sarl

// sas : Research IP LLC
// https://www.iana.org/domains/root/db/sas.html
sas

// save : Amazon Registry Services, Inc.
// https://www.iana.org/domains/root/db/save.html
save

// saxo : Saxo Bank A/S
// https://www.iana.org/domains/root/db/saxo.html
saxo

// sbi : STATE BANK OF INDIA

* fix incorrect error info when creating an azure file PVC failed ([#56550](https://github.com/kubernetes/kubernetes/pull/56550), [@andyzhangx](https://github.com/andyzhangx))
* remove time waiting after create storage account (save 25s) ([#56679](https://github.com/kubernetes/kubernetes/pull/56679), [@andyzhangx](https://github.com/andyzhangx))

* fix CreateVolume func: use search mode instead ([#54687](https://github.com/kubernetes/kubernetes/pull/54687), [@andyzhangx](https://github.com/andyzhangx))
* remove time waiting after create storage account (save 25s) ([#56679](https://github.com/kubernetes/kubernetes/pull/56679), [@andyzhangx](https://github.com/andyzhangx))

* Fixed panic in kube-proxy when parsing iptables-save output ([#78428](https://github.com/kubernetes/kubernetes/pull/78428), [@luksa](https://github.com/luksa))