*
   * This version of OkHttp implements [RFC 7230][rfc_7230], and tracks revisions to that spec.
   *
   * [rfc_7230]: https://tools.ietf.org/html/rfc7230
   */
  HTTP_1_1("http/1.1"),

  /**
   * Chromium's binary-framed protocol that includes header compression, multiplexing multiple
   * requests on the same socket, and server-push. HTTP/1.1 semantics are layered on SPDY/3.
   *

 * [Cronet Transport for OkHttp](https://github.com/google/cronet-transport-for-okhttp): A HTTP3 ready transport layer for OkHttp on Android, based on Chromium network stack.
 * [CWAC-NetSecurity](https://github.com/commonsguy/cwac-netsecurity): Simplifying Secure Internet Access.
 * [Failsafe](https://failsafe.dev/okhttp/): Fault tolerance and resilience patterns.

##### RESTRICTED_TLS versions

 * TLSv1.2

[OkHttp 3.10][OkHttp310]
------------------------

_2018-02-24_

Remove two rarely-used cipher suites from the default set. This tracks a [Chromium change][chromium_change] to remove these cipher suites because they are fragile and rarely-used.

##### MODERN_TLS / COMPATIBLE_TLS cipher suites

 * TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256