For developers, 1.12.2 represents a stable architecture. When Mojang restructured the game’s internal code in version 1.13 (the "Flattening"), it broke thousands of mods. Because updating those mods required rewriting them from scratch, many developers chose to keep their creations permanently optimized for 1.12.2. How to Download Minecraft 1.12.2 Java Edition Legally
Download the (choose the "Recommended" build for maximum stability). Run the downloaded .jar file and select Install Client . minecraft 1.12 2 download free java edition