- Reduced CPU and memory consumption of `kube-apiserver` if OpenAPI V2 will not be accessed by any client. Also improved performance of the apiserver on installation of many CRDs. ([#118212](https://github.com/kubernetes/kubernetes/pull/118212), [@Jefftree](https://github.com/Jefftree))

### Documentation

- Azure file migration graduates to beta, with CSIMigrationAzureFile flag off by default
  as it requires installation of AzureFile CSI Driver. Users should enable CSIMigration and
  CSIMigrationAzureFile features and install the [AzureFile CSI Driver](https://github.com/kubernetes-sigs/azurefile-csi-driver)

- Promote CSIMigrationOpenStack to Beta (off by default since it requires installation of the OpenStack Cinder CSI Driver. The in-tree AWS OpenStack Cinder driver "kubernetes.io/cinder" was deprecated in 1.16 and will be removed in 1.20. Users should enable CSIMigration + CSIMigrationOpenStack features and install the OpenStack Cinder...

            "-Dorg.gradle.java.installations.auto-download=false",
            "-Porg.gradle.java.installations.auto-download=false",
            "-Dorg.gradle.java.installations.auto-detect=false",
            "-Porg.gradle.java.installations.auto-detect=false",
            "\"-Dorg.gradle.java.installations.paths=$expectedInstallationPaths\"",
            "\"-Porg.gradle.java.installations.paths=$expectedInstallationPaths\"",

## External Dependency Version Information

Continuous integration builds have used the following versions of external dependencies, however, this is not a strong recommendation and users should consult an appropriate installation or upgrade guide before deciding what versions of etcd, docker or rkt to use.

* Docker versions 1.10.3 - 1.12.3
  * Docker version 1.11.2 known issues

                "-Dorg.gradle.java.installations.auto-download=false",
                "-Porg.gradle.java.installations.auto-download=false",
                "-Dorg.gradle.java.installations.auto-detect=false",
                "-Porg.gradle.java.installations.auto-detect=false",
                "\"-Dorg.gradle.java.installations.paths=$expectedInstallationPaths\"",

                listOf(
                    stage.getBuildScanCustomValueParam(),
                    buildScanTagParam("SanityCheck"),
                    "-Dorg.gradle.java.installations.auto-download=false",
                    "-Porg.gradle.java.installations.auto-download=false",
                ).joinToString(" "),
        )
    }) {
    companion object {
        fun buildTypeId(model: CIBuildModel) = "${model.projectId}_SanityCheck"

                    buildScanTagParam("BuildDistributions"),
                    "-PtestJavaVersion=${LINUX.buildJavaVersion.major}",
                    "-Dorg.gradle.java.installations.auto-download=false",
                    "-Porg.gradle.java.installations.auto-download=false",
                ).joinToString(" "),
        )

        features {
            publishBuildStatusToGithub(model)
        }

            ":docs:checkLinks",
            extraParameters =
                listOf(
                    buildScanTagParam("CheckLinks"),
                    "-Dorg.gradle.java.installations.auto-download=false",
                    "-Porg.gradle.java.installations.auto-download=false",
                ).joinToString(" "),
        )

                "-PrunAndroidStudioInHeadlessMode=true",
                "-Dorg.gradle.java.installations.auto-download=false",
                "-Porg.gradle.java.installations.auto-download=false",
                "\"-Dorg.gradle.java.installations.paths=$expectedInstallationPaths\"",
                "\"-Porg.gradle.java.installations.paths=$expectedInstallationPaths\"",