The PUBG Mobile 0.12.0 update, released in April 2019, introduced significant features like Darkest Night mode, the RPG-7 weapon, and a companion system. While modifications like the "Mr.Tech" version attempt to add features, downloading third-party APKs from non-official sources poses severe security risks, including malware infection, device instability, and permanent account bans. For secure gameplay, always use official versions found on the Google Play Store.