http://%zz%66%a.com

# If we get an invalid character that has been escaped.
http://%25
http://hello%00

# Escaped numbers should be treated like IP addresses if they are.
# No special handling for IPv4 or IPv4-like URLs
http://%30%78%63%30%2e%30%32%35%30.01  s:http p:/ h:192.168.0.1
http://%30%78%63%30%2e%30%32%35%30.01%2e  s:http p:/ h:0xc0.0250.01.
http://192.168.0.257

- On single-stack configured (IPv4 or IPv6, but not both) clusters, Services which are both headless (no clusterIP) and selectorless (empty or undefined selector) will report `ipFamilyPolicy RequireDualStack` and will have entries in `ipFamilies[]` for both IPv4 and IPv6.  This is a change from alpha, but does not have any impact on the manually-specified Endpoints and EndpointSlices for the Service....

- File content check for IPV4 is now enabled by default, and the check of IPV4 or IPV6 is done for `kubeadm init` or `kubeadm join` only in case the user intends to create a cluster to support that kind of IP address family ([#115420](https://github.com/kubernetes/kubernetes/pull/115420), [@chendave](http...

### IPv4/IPv6 run

 *  Fix: Recover gracefully when a coalesced connection immediately goes unhealthy.
 *  Fix: Defer the `SecurityException` when looking up the default proxy selector.
 *  Fix: Don't use brackets formatting IPv6 host names in MockWebServer.
 *  Fix: Don't permit cache iterators to remove entries that are being written.


## Version 4.0.1

_2019-07-10_

    // IPv6 colons don't interfere with port numbers or passwords.
    assertThat(parse("http://[::1]:8080/").port).isEqualTo(8080)
    assertThat(parse("http://user:password@[::1]/").password).isEqualTo("password")
    assertThat(parse("http://user:password@[::1]:8080/").host).isEqualTo("::1")

    // Permit the contents of IPv6 addresses to be percent-encoded...

 *  Fix: Change `MockWebServer` to use the same logic as OkHttp when determining
    whether an HTTP request permits a body.
 *  Fix: `HttpUrl` now uses the canonical form for IPv6 addresses.
 *  Fix: Use `HttpUrl` internally.
 *  Fix: Recover from Android 4.2.2 EBADF crashes.
 *  Fix: Don't crash with an `IllegalStateException` if an HTTP/2 or SPDY

This final piece completes the work needed to comply with Level 1 of the [SLSA security framework](https://slsa.dev/) (Supply-chain Levels for Software Artifacts).

### IPv4/IPv6 Dual-stack Networking graduates to GA

[IPv4/IPv6 dual-stack networking](https://github.com/kubernetes/enhancements/tree/master/keps/sig-network/563-dual-stack) graduates to GA.

  // podCIDRs represents the IP ranges assigned to the node for usage by Pods on that node. If this
  // field is specified, the 0th entry must match the podCIDR field. It may contain at most 1 value for
  // each of IPv4 and IPv6.
  // +optional
  // +patchStrategy=merge
  repeated string podCIDRs = 7;

  // ID of the node assigned by the cloud provider in the format: <ProviderName>://<ProviderSpecificNodeID>
  // +optional

                  to other services in the mesh.
                items:
                  properties:
                    bind:
                      description: The IP(IPv4 or IPv6) or the Unix domain socket
                        to which the listener should be bound to.
                      type: string
                    captureMode:
                      description: |-