monitor.enter();
      try {
        if (!transitioned) {
          // nothing has transitioned since construction, good.
          ready = true;
        } else {
          // This should be an extremely rare race condition.
          List<Service> servicesInBadStates = new ArrayList<>();
          for (Service service : servicesByState().values()) {
            if (service.state() != NEW) {

* fix vmss dirty cache issue in disk attach/detach on vmss node ([#85158](https://github.com/kubernetes/kubernetes/pull/85158), [@andyzhangx](https://github.com/andyzhangx))
* fix race condition when attach/delete azure disk in same time ([#84917](https://github.com/kubernetes/kubernetes/pull/84917), [@andyzhangx](https://github.com/andyzhangx))

    happened enough then eventually the connection would stall.

 *  Fix: Acknowledge and apply inbound HTTP/2 settings atomically. Previously we had a race where we
    could use new flow control capacity before acknowledging it, causing strict HTTP/2 servers to
    fail the call.

 *  Fix: Recover gracefully when a coalesced connection immediately goes unhealthy.

- Fixed a data race in TopologyCache when `AddHints` and `SetNodes` are called concurrently. ([#117249](https://github.com/kubernetes/kubernetes/pull/117249), [@tnqn](https://github.com/tnqn)) [SIG Apps and Network]

* Fix a race condition in the scheduler preemption logic that could cause nominatedNodeName of a pod not to be considered in one or more scheduling cycles. ([#72504](https://github.com/kubernetes/kubernetes/pull/72504), [@bsalamat](https://github.com/bsalamat))

* Fix a race condition in the scheduler preemption logic that could cause nominatedNodeName of a pod not to be considered in one or more scheduling cycles. ([#72504](https://github.com/kubernetes/kubernetes/pull/72504), [@bsalamat](https://github.com/bsalamat))

- 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 a panic in `kubectl api-resources` that occurred when the Discovery Client failed. ([#134833](https://github.com/kubernetes/kubernetes/pull/134833), [@rikatz](https://github.com/rikatz))
- Fixed a possible data race during metrics registration. ([#134390](https://github.com/kubernetes/kubernetes/pull/134390), [@liggitt](https://github.com/liggitt)) [SIG Architecture and Instrumentation]

* 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))

- Fixed a race condition on API server startup ensuring previously created webhook configurations are effective before the first write request is admitted. ([#95783](https://github.com/kubernetes/kubernetes/pull/95783), [@roycaihw](https://github.com/roycaihw)) [SIG API Machinery]