This is the list of main changes between major versions 8 and 9 of Appium java client. This list should help you to successfully migrate your existing automated tests codebase. ## The support for Java compilers below version 11 has been dropped - The minimum supported Java version is now 11. The library won't work with Java compilers below this version. ## The minimum supported Selenium version is set to 4.14.1 - Selenium versions below 4.14.1 won't work with Appium java client 9+. Check the [Compatibility Matrix](../README.md#compatibility-matrix) for more details about versions compatibility. ## Removed previously deprecated items - `MobileBy` class has been removed. Use [AppiumBy](../src/main/java/io/appium/java_client/AppiumBy.java) instead - `launchApp`, `resetApp` and `closeApp` methods along with their `SupportsLegacyAppManagement` container. Use [the corresponding extension methods](https://github.com/appium/appium/issues/15807) instead. - `WindowsBy` class and related location strategies. - `ByAll` class has been removed in favour of the same class from Selenium lib. - `AndroidMobileCapabilityType` interface. Use [UIAutomator2 driver options](../src/main/java/io/appium/java_client/android/options/UiAutomator2Options.java) or [Espresso driver options](../src/main/java/io/appium/java_client/android/options/EspressoOptions.java) instead. - `IOSMobileCapabilityType` interface. Use [XCUITest driver options](../src/main/java/io/appium/java_client/ios/options/XCUITestOptions.java) instead. - `MobileCapabilityType` interface. Use [driver options](../src/main/java/io/appium/java_client/remote/options/BaseOptions.java) instead. - `MobileOptions` class. Use [driver options](../src/main/java/io/appium/java_client/remote/options/BaseOptions.java) instead. - `YouiEngineCapabilityType` interface. Use [driver options](../src/main/java/io/appium/java_client/remote/options/BaseOptions.java) instead. - Several misspelled methods. Use properly spelled alternatives instead. - `startActivity` method from AndroidDriver. Use [mobile: startActivity](https://github.com/appium/appium-uiautomator2-driver#mobile-startactivity) extension method instead. - `APPIUM` constant from the AutomationName interface. It is not needed anymore. - `PRE_LAUNCH` value from the GeneralServerFlag enum. It is not needed anymore. ## Moved items - `AppiumUserAgentFilter` class to `io.appium.java_client.internal.filters` package.