Retrofit 2.4.0 已发布，Retrofit 是一个类型安全的 REST 客户端，用于 Android 平台。该版本引入了一些新特性，以及修复 bug。
Retrofit.Builderexposes mutable lists of the added converter and call adapter factories.
New: Call adapter added for Scala's
New: Converter for JAXB replaces the now-deprecated converter for Simple XML Framework.
New: Add Java 9 automatic module names for each artifact corresponding to their root package.
Fix: Do not swallow
Errors from callbacks (usually
Fix: Moshi and Gson converters now assert that the full response was consumed. This prevents hiding bugs in faulty adapters which might not have consumed the full JSON input which would then cause failures on the next request over that connection.
Fix: Do not conflate OkHttp
Callcancelation with RxJava unsubscription/disposal. Prior to this change, canceling of a
Callwould prevent a cancelation exception from propagating down the Rx stream.