- [v1.3.0-beta.3](#v130-beta3)
  - [Downloads](#downloads-10)
  - [Changelog since v1.3.0-beta.2](#changelog-since-v130-beta2)
    - [Action Required](#action-required)
    - [Other notable changes](#other-notable-changes-10)
- [v1.3.0-beta.2](#v130-beta2)
  - [Downloads](#downloads-11)
  - [Changes since v1.3.0-beta.1](#changes-since-v130-beta1)
    - [Experimental Features](#experimental-features)

// check the data type.
typedef std::pair<std::string, DataType> IOSpec;

const char* kFeedStackToString = "File \"feed.cc\", line 10, in alpha";
const char* kNegStackToString = "File \"neg.cc\", line 15, in beta";

std::vector<IOSpec> M(const std::initializer_list<std::string>& names) {
  std::vector<IOSpec> v;
  for (const std::string& name : names) {
    v.push_back(IOSpec(name, DT_INVALID));
  }
  return v;
}

        .Builder()
        .addHeaderLenient("Alpha", "α")
        .addHeaderLenient("β", "Beta")
        .build(),
    )
    val call = client.newCall(Request(server.url("/")))
    val response = call.execute()
    response.close()
    assertThat(response.header("Alpha")).isEqualTo("α")
    assertThat(response.header("β")).isEqualTo("Beta")
  }

  @Test
  fun serverSendsPushPromise_GET() {

    to do domain fronting.
 *  New: charset support for `Credentials.basic()`.


## Version 3.5.0

_2016-11-30_

 *  **Web Sockets are now a stable feature of OkHttp.** Since being introduced as a beta feature in
    OkHttp 2.3 our web socket client has matured. Connect to a server's web socket with
    `OkHttpClient.newWebSocket()`, send messages with `send()`, and receive messages with the
    `WebSocketListener`.