*  **TLSv1 and TLSv1.1 are no longer enabled by default.** Major web browsers are working towards
    removing these versions altogether in early 2020. If your servers aren't ready yet you can
    configure OkHttp 3.13 to allow TLSv1 and TLSv1.1 connections:

    ```
    OkHttpClient client = new OkHttpClient.Builder()
        .connectionSpecs(Arrays.asList(ConnectionSpec.COMPATIBLE_TLS))
        .build();
    ```