No one knew who released it. It simply appeared at 03:14 UTC on a Tuesday, posted to a dead forum link that had been 404 for six years. The file name: apktool_4.2.0_final.jar . No changelog. No PGP signature. Just a single line of text in the README:

Legacy tools often corrupt non-Latin character encodings in strings.xml . Advanced APKTool maintains a strict UTF-8 handling protocol, ensuring that translations involving complex scripts (CJK, RTL languages) are preserved during the round-trip (decode -> edit -> build) process.

Enhanced capabilities to handle, decode, and recompile native code within APKs, such as .so files.

introduces framework tagging:

—developed by BDFreak—aimed to streamline this complex process through an integrated environment and automated scripts. 1. Technical Framework and Capabilities

: Users frequently encounter recompilation errors (such as NoClassDefFoundError or framework issues) when the bundled version of the core apktool.jar is outdated or when environment variables are not correctly set.