Difference between signature version V1(jar signature) and V2(full apk signature) 


I manage the old android app, so I need to use old version of AndroidStudio 3.6.3

When I generate apk, there are two version of signature.

One is V1(Jar Signature) and the other is V2(Full APK Signature).

V2(Full APK signature) is introduced on Android 7.0.

It offers faster ap install time and more protection against unauthorized alterations to apk file.

So, the apk signed by V2 is not available on Android version below 7.0