okhttp 3.4.0 和 3.4.1 发布了，okhttp 是一个 Java 的 HTTP+SPDY 客户端开发包，同时也支持 Android。
3.4.0 更新如下：
New: Support dynamic table size changes to HPACK Encoder.
Fix: Use TreeMap in Headers.toMultimap(). This makes string lookups on the returned map case-insensitive.
Fix: Don't share the OkHttpClient's Dispatcher in HttpURLConnection.
3.4.1 更新如下：
Fix an major bug in encoding HTTP headers. In 3.4.0 and 3.4.0-RC1 OkHttp had an off-by-one bug in our HPACK encoder. This bug could have caused the wrong headers to be emitted after a sequence of HTTP/2 requests! Everyone who is using OkHttp 3.4.0 or 3.4.0-RC1 should upgrade for this bug fix.
软件详情：https://github.com/square/okhttp/
下载地址：https://github.com/square/okhttp/archive/parent-3.4.0.tar.gz
来自:开源中国社区
