okhttp 2.7.5 和 3.2.0 发布了，okhttp 是一个 Java 的 HTTP+SPDY 客户端开发包，同时也支持 Android。 okhttp 2.7.5 更新记录： Fix: Change the certificate pinner to always build full chains. This prevents a potential crash when using certificate pinning with the Google Play Services security provider. okhttp 3.2.0 更新记录： Fix: Change the certificate pinner to always build full chains. This prevents a potential crash when using certificate pinning with the Google Play Services security provider. Fix: Make IPv6 request lines consistent with Firefox and Chrome. Fix: Recover gracefully when trimming the response cache fails. New: Add multiple path segments using a single string in HttpUrl.Builder. New: Support SHA-256 pins in certificate pinner. 下载地址：https://github.com/square/okhttp/archive/master.zip okhttp 2.7.5 和 3.2.0 发布，HTTP 客户端开发包下载地址
