Android 4.4 kitkat API 19

After September 27, the oldest version of Android you’ll be able to sign in to is Android 3.0 Honeycomb , which is only for tablets.

For instance, Android 1.0 is API level 1 and Android 4.4 is API level 19. The API level allows you to declare the minimum version with which your app is compatible, using the <uses-sdk> manifest tag and its minSdkVersion attribute .

With the release of Android 10, Google has stopped support for Android 7 or earlier . This means that no more security patches or OS updates will be pushed out by Google and Handset vendors as well.