- Simplied validation error message for invalid fields by removing redundant field name. ([#132513](https://github.com/kubernetes/kubernetes/pull/132513), [@xiaoweim](https://github.com/xiaoweim)) [SIG API Machinery, Apps, Auth, Node and Scheduling]

- Projects which use k8s.io/code-generator and invoke `generate-groups` or `generate-internal-groups.sh` have a new, simpler script (`kube_codegen.sh`) they can use.  The old scripts are deprecated but remain intact. ([#117262](https://github.com/kubernetes/kubernetes/pull/117262), [@thockin](https://github.com/thockin)) [SIG API Machinery and Instrumentation]

- Improve CPU sample sanitization in HPA by taking metric's freshness into account. ([#68068](https://github.com/kubernetes/kubernetes/pull/68068), [@krzysztof-jastrzebski](https://github.com/krzysztof-jastrzebski))

    <tika:link>http://www.digitalpreservation.gov/formats/fdd/fdd000317.shtml</tika:link>
    <magic priority="50">
      <match value="SIMPLE  =                    T" type="string" offset="0"/>
      <match value="SIMPLE  =                T" type="string" offset="0"/>
    </magic>
    <glob pattern="*.fits"/>
    <glob pattern="*.fit"/>
    <glob pattern="*.fts"/>
  </mime-type>

- Fixed a bug where `events/v1` `Events` with similar event type and reporting instance were not aggregated by `client-go`. ([#112365](https://github.com/kubernetes/kubernetes/pull/112365), [@dgrisonnet](https://github.com/dgrisonnet))

- google.golang.org/genproto/googleapis/bytestream: e85fd2c
- google.golang.org/grpc/cmd/protoc-gen-go-grpc: v1.1.0
- gopkg.in/gcfg.v1: v1.2.3
- gopkg.in/warnings.v0: v0.1.2
- rsc.io/quote/v3: v3.1.0
- rsc.io/sampler: v1.3.0



# v1.31.0-rc.1


## Downloads for v1.31.0-rc.1



### Source Code

filename | sha512 hash
-------- | -----------

- Add fish shell completion to kubectl. ([#92989](https://github.com/kubernetes/kubernetes/pull/92989), [@WLun001](https://github.com/WLun001))
- Add mechanism to load simple sniffer class into fluentd-elasticsearch image ([#92853](https://github.com/kubernetes/kubernetes/pull/92853), [@cosmo0920](https://github.com/cosmo0920))
- Add support for Portworx plugin to csi-translation-lib. Alpha release
  

*   An example CRD controller has been added, at [github.com/kubernetes/sample-controller](https://github.com/kubernetes/sample-controller). ([#52753](https://github.com/kubernetes/kubernetes/pull/52753),[ @munnerz](https://github.com/munnerz))

#### Azure

- Kubelet can now run without identity on Azure. A sample cloud provider configuration is:  `{"vmType": "vmss", "useInstanceMetadata": true, "subscriptionId": "<subscriptionId>"}` ([#77906](https://github.com/kubernetes/kubernetes/pull/77906), [@feiskyer](https://github.com/feiskyer))

- The sample-apiserver aggregated conformance test has updated to use the Kubernetes v1.17.0 sample apiserver ([#84735](https://github.com/kubernetes/kubernetes/pull/84735), [@liggitt](https://github.com/liggitt)) [SIG API Machinery, Architecture, CLI and Testing]