This version includes very significant performance improvements (especially when scrolling, pinching, zooming) and minor fixes.
On some older devices the difference can be very visible.
102-1.apk : Signed using Play Store Key
Other APKs: arm, arm64, x86
arm version is the most popular
arm64 takes more space and is only for recent devices and offers better performance
x86 is only for the rare devices using an x86-compatible processor