* fixes spurious "meaningful conflict" error encountered by nodes attempting to update status, which could cause them to be considered unready ([#66171](https://github.com/kubernetes/kubernetes/pull/66171), [@liggitt](https://github.com/liggitt))

  - The issuer of the certificate is unknown (x509.UnknownAuthorityError)
  - The requested name does not match the set of authorized names (x509.HostnameError)

- Kube-apiserver: The OIDC authenticator no longer waits 10 seconds before attempting to fetch the metadata required to verify tokens. ([#97693](https://github.com/kubernetes/kubernetes/pull/97693), [@enj](https://github.com/enj)) [SIG API Machinery and Auth]

- kube-apiserver: fixed a conflict error encountered attempting to delete a pod with `gracePeriodSeconds=0` and a resourceVersion precondition ([#85516](https://github.com/kubernetes/kubernetes/pull/85516), [@michaelgugino](https://github.com/michaelgugino))

* client-go: fake clients now properly return NotFound errors when attempting to patch non-existent objects ([#70886](https://github.com/kubernetes/kubernetes/pull/70886), [@bouk](https://github.com/bouk))

</p>

<pre>
func Read(f *File, b []byte) (n int, err error)
</pre>

<h2 id="Run_time_panics">Run-time panics</h2>

<p>
Execution errors such as attempting to index an array out
of bounds trigger a <i>run-time panic</i> equivalent to a call of
the built-in function <a href="#Handling_panics"><code>panic</code></a>

* The Calico version included in kube-up for GCE has been updated to v2.2. ([#38169](https://github.com/kubernetes/kubernetes/pull/38169), [@caseydavenport](https://github.com/caseydavenport))
* Kubelet: Fix image garbage collector attempting to remove in-use images. ([#46121](https://github.com/kubernetes/kubernetes/pull/46121), [@Random-Liu](https://github.com/Random-Liu))

  - The issuer of the certificate is unknown (x509.UnknownAuthorityError)
  - The requested name does not match the set of authorized names (x509.HostnameError)

</p>

<pre>
func Read(f *File, b []byte) (n int, err error)
</pre>

<h2 id="Run_time_panics">Run-time panics</h2>

<p>
Execution errors such as attempting to index an array out
of bounds trigger a <i>run-time panic</i> equivalent to a call of
the built-in function <a href="#Handling_panics"><code>panic</code></a>

  - The issuer of the certificate is unknown (x509.UnknownAuthorityError)
  - The requested name does not match the set of authorized names (x509.HostnameError)