- "routeTableCacheTTLInSeconds"
  ([#86266](https://github.com/kubernetes/kubernetes/pull/86266), [@zqingqing1](https://github.com/zqingqing1)) [SIG Cloud Provider]

- Apiserver `/healthz/etcd` endpoint rate limits the number of forwarded health check requests to the etcd backends, answering with the last known state if the rate limit is exceeded. The rate limit is based on 1/2 of the timeout configured, with no burst allowed. ([#112046](https://github.com/kubernetes/kubernetes/pull/112046), [@aojea](https://github.com/aojea))...

* Separate current ARM rate limiter into read/write ([#59830](https://github.com/kubernetes/kubernetes/pull/59830), [@khenidak](https://github.com/khenidak))

    * Don't watch .mount cgroups to reduce number of inotify watches
    * Fix NVML initialization race condition
    * Fix brtfs disk metrics when using a subdirectory of a subvolume
* Change Azure ARM Rate limiting error message. ([#65292](https://github.com/kubernetes/kubernetes/pull/65292), [@wgliang](https://github.com/wgliang))

- Enabled the `OrderedNamespaceDeletion` feature gate by default. ([#130507](https://github.com/kubernetes/kubernetes/pull/130507), [@cici37](https://github.com/cici37)) [SIG API Machinery and Apps]
- Enabled user namespaces support (feature gate `UserNamespacesSupport`) by default. ([#130138](https://github.com/kubernetes/kubernetes/pull/130138), [@rata](https://github.com/rata)) [SIG Node and Testing]

- Fixed a data race when emitting similar Events consecutively ([#114236](https://github.com/kubernetes/kubernetes/pull/114236), [@dgrisonnet](https://github.com/dgrisonnet))
- Fixed a log line in scheduler that inaccurately implies that volume binding has finalized ([#116018](https://github.com/kubernetes/kubernetes/pull/116018), [@TommyStarK](https://github.com/TommyStarK))

* Fixed missing error checking that could cause kubelet to crash in a race condition. ([#60962](https://github.com/kubernetes/kubernetes/pull/60962), [@technicianted](https://github.com/technicianted))
* Bump Heapster to v1.5.2 ([#61396](https://github.com/kubernetes/kubernetes/pull/61396), [@kawych](https://github.com/kawych))

- Ensures `ExecProbeTimeout=false` kubelet feature gate with dockershim is taken into account, when the exec probe takes longer than `timeoutSeconds` configuration. ([#100200](https://github.com/kubernetes/kubernetes/pull/100200), [@jackfrancis](https://github.com/jackfrancis))

## Notable Features
### Stable
- Graduate ScheduleDaemonSetPods to GA. (feature gate will be removed in 1.18) ([#82795](https://github.com/kubernetes/kubernetes/pull/82795), [@draveness](https://github.com/draveness))
- Graduate TaintNodesByCondition to GA in 1.17. (feature gate will be removed in 1.18) ([#82703](https://github.com/kubernetes/kubernetes/pull/82703), [@draveness](https://github.com/draveness))

- The GCERegionalPersistentDisk feature gate (GA in 1.13) can no longer be disabled. The feature gate will be removed in v1.17. ([#77412](https://github.com/kubernetes/kubernetes/pull/77412), [@liggitt](https://github.com/liggitt))