AndroidX is a major improvement to the original Android Support Library. Like the Support Library, AndroidX ships separately from the Android OS and provides backwards-compatibility across Android releases. AndroidX fully replaces the Support Library by providing feature parity and new libraries.

What is difference between AndroidX and jetpack?

Jetpack is a larger-scoped effort to improve developer experience, but AndroidX forms the technical foundation. From a technical perspective, it’s still the same libraries you’d have seen under Support Library and Architecture Components. As best practices change, you may also see libraries in the androidx.

How can I change my AndroidX to Android?

With Android Studio 3.2 and higher, you can migrate an existing project to AndroidX by selecting Refactor > Migrate to AndroidX from the menu bar. The refactor command makes use of two flags. By default, both of them are set to true in your gradle.