The jump to v15 was not merely a cosmetic update. Based on developer changelogs and user reports, here are the standout improvements:
Older tools required manual driver installation. LSNP v15 includes an intelligent driver scanner that automatically installs the necessary VCOM drivers and detects the device when connected via USB while powered off. lsnp unlocker mtk tool v15
Unlike freeware tools, LSNP v15 likely uses a server-side verification system (paid login) to prevent piracy. This server also houses updated DA (Download Agent) files, ensuring you aren't trying to flash a device with outdated protocols. The jump to v15 was not merely a cosmetic update