Update README.md

Author: TikhomirovSergey

README.md

@@ -76,7 +76,9 @@ You can get it on [WIKI](https://github.com/appium/java-client/wiki)
 
 ## Changelog#
 *5.0.0 (under construction yet)*
-- **[MAJOR ENHANCEMENT]**: Migration to Java 8
+- **[MAJOR ENHANCEMENT]**: Migration to Java 8. Epic: [#399](https://github.com/appium/java-client/issues/399)
+  - API with default implementation. PR [#470](https://github.com/appium/java-client/pull/470)
+  
   ... *the list of changes is going to be filled*
 - **[MAJOR ENHANCEMENT]**: Migration from Maven to Gradle. Feature request is [#214](https://github.com/appium/java-client/issues/214). Fixes: [#442](https://github.com/appium/java-client/pull/442), [#465](https://github.com/appium/java-client/pull/465).
 - **[MAJOR ENHANCEMENT]**: Now the `io.appium.java_client.AppiumDriver` can use an instance of any `io.appium.java_client.MobileBy` subclass for the searching. It should work as expected when current session supports the given selector. It will throw `org.openqa.selenium.WebDriverException` otherwise. [#462](https://github.com/appium/java-client/pull/462)