: If you are looking for information on "Apktool" (a tool for reverse engineering Android apps), version 2.0 was a significant milestone released around 2015 that introduced better support for modern Android resource structures and updated the internal smali library.
If you want, I can:
: Now provided as downloadable executables for both Windows and Apple, or as Python source code for custom compilation. Related Technical Resources Installation and Training : For practical implementation, the MMV website pktool v2.0