R8 / ProGuard ============= If you use OkHttp as a dependency in an Android project which uses R8 as a default compiler you don't have to do anything. The specific rules are [already bundled][okhttp3_pro] into the JAR which can be interpreted by R8 automatically. If you, however, don't use R8 you have to apply the rules from [this file][okhttp3_pro]. You might also need rules from [Okio][okio] which is a dependency of this library. [okhttp3_pro]: https://raw.githubusercontent.com/square/okhttp/master/okhttp/src/jvmMain/resources/META-INF/proguard/okhttp3.pro [okio]: https://square.github.io/okio/