* "ExternalTrafficLocalOnly" has been removed from feature gate. It has been a GA feature since v1.7. ([#56948](https://github.com/kubernetes/kubernetes/pull/56948), [@MrHohn](https://github.com/MrHohn))
* feat(fakeclient): push event on watched channel on add/update/delete ([#57504](https://github.com/kubernetes/kubernetes/pull/57504), [@yue9944882](https://github.com/yue9944882))

- Feat: change parittion style to GPT on Windows ([#101412](https://github.com/kubernetes/kubernetes/pull/101412), [@andyzhangx](https://github.com/andyzhangx)) [SIG Storage and Windows]

### Documentation

- Feat: azure file migration go beta in 1.21. Feature gates CSIMigration to Beta (on by default) and CSIMigrationAzureFile to Beta (off by default since it requires installation of the AzureFile CSI Driver)

### OpenStack
* Do not daemonize `salt-minion` for the openstack-heat provider. ([#40722](https://github.com/kubernetes/kubernetes/pull/40722), [@micmro](https://github.com/micmro))

- Introduced new apiserver metric `apiserver_flowcontrol_current_inqueue_seats`. This metric is analogous to `apiserver_flowcontrol_current_inqueue_requests`, but tracks the total number of seats, as each request can take more than one seat. ([#119385](https://github.com/kubernetes/kubernetes/pull/119385), [@andrewsykim](https://github.com/andrewsykim))

    - `apiserver_flowcontrol_demand_seats_stdev`: Time-weighted standard deviation, over last adjustment period, of demand_seats
    - `apiserver_flowcontrol_demand_seats_smoothed`: Smoothed seat demands
    - `apiserver_flowcontrol_target_seats`: Seat allocation targets
    - `apiserver_flowcontrol_seat_fair_frac`: Fair fraction of server's concurrency to allocate to each priority level that can use it

   The `read_vs_write_current_requests` metric histogram is adjusted, in the case of using API Priority and Fairness instead of max-in-flight, to divide by the relevant limit: sum of queue capacities for waiting requests, sum of seat limits for executing requests. ([#110164](https://github.com/kubernetes/kubernetes/pull/110164), [@MikeSpreitzer](https://github.com/MikeSpreitzer))

* Update to golang 1.10.4 ([#68802](https://github.com/kubernetes/kubernetes/pull/68802), [@ixdy](https://github.com/ixdy))
* kubeadm now uses fat manifests for the kube-dns images ([#68830](https://github.com/kubernetes/kubernetes/pull/68830), [@rosti](https://github.com/rosti))