*     .addInterceptor(new HttpLoggingInterceptor())
 *     .cache(new Cache(cacheDir, cacheSize))
 *     .build();
 * ```
 *
 * ## Customize Your Client With newBuilder()
 *
 * You can customize a shared OkHttpClient instance with [newBuilder]. This builds a client that
 * shares the same connection pool, thread pools, and configuration. Use the builder methods to

 *  **OkHttp no longer attempts a direct connection if the system's HTTP proxy fails.** This
    behavior was surprising because OkHttp was disregarding the user's specified configuration. If
    you need to customize proxy fallback behavior, implement your own `java.net.ProxySelector`.

 *  Fix: Support TLSv1.3 on devices that support it.

 *  Fix: Share pooled connections across equivalent `OkHttpClient` instances. Previous releases had