_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
making compression the default for everyone starting with this release candidate.

Please be considerate of your servers and their operators as you roll out this release. Compression

    .writeByte('.'.code)
    .writeDecimalLong((address[3] and 0xff).toLong())
    .readUtf8()
}

/**
 * If this is an IP address, this returns the IP address in canonical form.
 *
 * Otherwise, this performs IDN ToASCII encoding and canonicalize the result to lowercase. For
 * example this converts `☃.net` to `xn--n3h.net`, and `WwW.GoOgLe.cOm` to `www.google.com`.

 */
package okhttp3

/**
 * [TLS cipher suites][iana_tls_parameters].
 *
 * **Not all cipher suites are supported on all platforms.** As newer cipher suites are created (for
 * stronger privacy, better performance, etc.) they will be adopted by the platform and then exposed
 * here. Cipher suites that are not available on either Android (through API level 24) or Java
 * (through JDK 9) are omitted for brevity.
 *

    prefer the JDK’s precedence order.) This change may cause your HTTP calls to negotiate a
    different cipher suite than before! OkHttp's defaults cipher suites are selected for good
    security and performance.

 *  New: `ConnectionListener` publishes events for connects, disconnects, and use of pooled
    connections.

 *  Fix: Immediately update the connection's flow control window instead of waiting for the

## Version 2.7.4

_2016-02-07_

 *  Fix: Don't crash when finding the trust manager if the Play Services (GMS)
    security provider is installed.
 *  Fix: The previous release introduced a performance regression on Android,
    caused by looking up CA certificates. This is now fixed.


## Version 2.7.3

_2016-02-06_

 *  Fix: Permit the trusted CA root to be pinned by `CertificatePinner`.

      }
    }

    if (connections.isEmpty()) cleanupQueue.cancelAll()

    for (policy in addressStates.values) {
      policy.scheduleOpener()
    }
  }

  /**
   * Performs maintenance on this pool, evicting the connection that has been idle the longest if
   * either it has exceeded the keep alive limit or the idle connections limit.
   *

      lock.assertNotHeld()

      connection.updateConnectionFlowControl(read)
    }

    /**
     * Accept bytes on the connection's reader thread. This function avoids holding locks while it
     * performs blocking reads for the incoming bytes.
     */
    @Throws(IOException::class)
    internal fun receive(
      source: BufferedSource,
      byteCount: Long,
    ) {
      lock.assertNotHeld()