of environment variables for containers in Pods. ([#123385](https://github.com/kubernetes/kubernetes/pull/123385), [@HirazawaUi](https://github.com/HirazawaUi))

    memory if web socket compression is negotiated but not used.


## Version 4.5.0-RC1

_2020-03-17_

**This release candidate turns on web socket compression.**

The [spec][rfc_7692] includes a sophisticated mechanism for client and server to negotiate
compression features. We strive to offer great performance in our default configuration and so we're

     * @since 2.2
     */
    int getLeaseVersion();

    /**
     * Property {@code jcifs.smb.client.leaseBreakTimeout} (int, default 60)
     *
     * @return lease break timeout in seconds (per MS-SMB2 spec)
     * @since 2.2
     */
    int getLeaseBreakTimeout();

    /**
     *
     *
     * Property {@code jcifs.netbios.lmhosts} (string)
     *
     * @return lmhosts file to use
     */

- CustomResourceDefinitions added support for marking versions as deprecated by setting `spec.versions[*].deprecated` to `true`, and for optionally overriding the default deprecation warning with a `spec.versions[*].deprecationWarning` field. ([#92329](https://github.com/kubernetes/kubernetes/pull/92329), [@liggitt](https://github.com/liggitt)) [SIG API Machinery]

- When using `kubectl replace` (or the equivalent API call) on a Service, the caller no longer needs to do a read-modify-write cycle to fetch the allocated values for `.spec.clusterIP` and `.spec.ports[].nodePort`.  Instead the API server will automatically carry these forward from the original object when the new object does not specify them. ([#104674](https://github.com/kubernetes/kubernetes/pull/104674), [@thockin](https://github.com/thockin))...

    /** Maximum number of concurrent leases */
    protected int maxLeases = 1000;
    /** Preferred lease version (1 or 2) */
    protected int leaseVersion = 2;
    /** Lease break timeout in seconds (per MS-SMB2 spec) */
    protected int leaseBreakTimeout = 60;
    /** Whether to use NT status codes instead of DOS error codes */
    protected boolean useNtStatus = true;
    /** Whether to use extended security negotiation */

* Node status updater should SetNodeStatusUpdateNeeded if it fails to update status ([#34368](https://github.com/kubernetes/kubernetes/pull/34368), [@jingxu97](https://github.com/jingxu97))
* Deprecate OpenAPI spec for GroupVersion endpoints in favor of single spec /swagger.json ([#35388](https://github.com/kubernetes/kubernetes/pull/35388), [@mbohlool](https://github.com/mbohlool))

- github.com/container-storage-interface/spec: [v1.8.0 → v1.9.0](https://github.com/container-storage-interface/spec/compare/v1.8.0...v1.9.0)
- github.com/cpuguy83/go-md2man/v2: [v2.0.2 → v2.0.4](https://github.com/cpuguy83/go-md2man/compare/v2.0.2...v2.0.4)
- github.com/davecgh/go-spew: [v1.1.1 → d8f796a](https://github.com/davecgh/go-spew/compare/v1.1.1...d8f796a)

  // We need to test that our method behaves like the JDK method.
  @SuppressWarnings("InlineMeInliner")
  public void testCompare() {
    for (boolean x : VALUES) {
      for (boolean y : VALUES) {
        // note: spec requires only that the sign is the same
        assertWithMessage(x + ", " + y)
            .that(Booleans.compare(x, y))
            .isEqualTo(Boolean.valueOf(x).compareTo(y));
      }
    }
  }

## Changelog since v1.15.3

### Other notable changes

* Restores compatibility with kubectl client-side validation when structural schemas are present in a CRD which sets spec.preserveUnknownFields=true ([#82666](https://github.com/kubernetes/kubernetes/pull/82666), [@liggitt](https://github.com/liggitt))