you had a client that was sending an invalid Content-Type or Accept header to
the API, in 1.2 you will either receive a 415 or 406 error.
The only client
this is known to affect is curl when you use -d with JSON but don't set a
content type, helpfully sends "application/x-www-urlencoded", which is not
correct.
Other client authors should double check that you are sending proper

## Changelog since v1.16.9

## Changes by Kind

### API Change
 - Fix bug where sending a status update completely wipes managedFields for some types. ([#90033](https://github.com/kubernetes/kubernetes/pull/90033), [@apelisse](https://github.com/apelisse)) [SIG API Machinery and Testing]

### Bug or Regression

### Container Storage Interface graduations

    val logs = testLogHandler.takeAll()
    assertThat(firstFrame(logs, "HEADERS")!!, "header logged")
      .contains("HEADERS       END_HEADERS")
    // While MockWebServer waits to read the client's HEADERS frame before sending the response, it
    // doesn't wait to read the client's DATA frame and may send a DATA frame before the client
    // does. So we can't assume the client's empty DATA will be logged first.

    * try to only update vm if detach a non-existing disk when got <200, error> after detach disk operation
* This adds some useful metrics around pending changes and last successful ([#78602](https://github.com/kubernetes/kubernetes/pull/78602), [@paulgmiller](https://github.com/paulgmiller))
    * sync time.
 

- If the feature-gate VolumeAttributesClass is enabled, when finding a suitable persistent volume for a claim, the kube-controller-manager will be aware of the `volumeAttributesClassName` field of PVC and PV objects. The `volumeAttributesClassName` field is a reference to a VolumeAttributesClass object, which contains...

- Fixed a bug in `kube-scheduler` where pending pod preemption caused preemptor pods to be retried more frequently. ([#134245](https://github.com/kubernetes/kubernetes/pull/134245), [@macsko](https://github.com/macsko)) [SIG Scheduling and Testing]

    - [Additional changes](#additional-changes)
  - [External Dependencies](#external-dependencies)
  - [Bug Fixes](#bug-fixes)
      - [General Fixes and Reliability](#general-fixes-and-reliability)
  - [Non-user-facing changes](#non-user-facing-changes)
- [v1.11.0-rc.3](#v1110-rc3)
  - [Downloads for v1.11.0-rc.3](#downloads-for-v1110-rc3)
    - [Client Binaries](#client-binaries-11)
    - [Server Binaries](#server-binaries-11)

- Scheduler now waits for handlers to finish syncing before the scheduling cycles start. ([#116729](https://github.com/kubernetes/kubernetes/pull/116729), [@AxeZhan](https://github.com/AxeZhan))

- Add SourceVolumeMode field to VolumeSnapshotContents. Documentation for this alpha feature is pending. ([#665](https://github.com/kubernetes-csi/external-snapshotter/pull/665), [@RaunakShah](https://github.com/RaunakShah))
- Update snapshotter module to v6 and client module to v5. Documentation for this alpha feature is pending. ([#670],(https://github.com/kubernetes-csi/external-snapshotter/pull/670), [@RaunakShah](https://github.com/RaunakShah))