Minecraft Forge

Supports Minecraft 1.0.0, 1.1, 1.10.2, 1.11, 1.11.2, 1.12, 1.12.1, 1.12.2, 1.13.2, 1.14.2, 1.14.3, 1.14.4, 1.2.3, 1.2.4, 1.2.5, 1.3.1, 1.3.2, 1.4.2, 1.4.4, 1.4.5, 1.4.6, 1.4.7, 1.5, 1.5.1, 1.5.2, 1.6.2, 1.6.4, 1.7.10, 1.7.2, 1.8, 1.8.9, 1.9, 1.9.4, b1.7.3, b1.8.1

Modifications to the Minecraft base files to assist in compatibility between mods.

PlayerAPI

Supports Minecraft 1.0.0, 1.1, 1.1.0, 1.10, 1.10.2, 1.11, 1.11.2, 1.12, 1.12.1, 1.12.2, 1.2.3, 1.2.4, 1.2.5, 1.6.4, 1.7.10, 1.7.2, 1.8, 1.8.9, 1.9, 1.9.4, b1.7.3, b1.8.1

Player API is an API which provides access to

the client class "EntityPlayerSP" and the server class "EntityPlayerMP" while minimizing conflicts between mods.