Legacy Connector

1.7.10 is now beta and 1.12.2 is out of experimental (alpha).

1.12.2

• Big content mods load and play in a real client: Botania, Blood Magic, Mekanism, EnderIO, Immersive Engineering, Tinkers' Construct, Quark, Biomes O' Plenty, Vampirism, the Aether, Scape and Run: Parasites.
• About 10,000 more legacy APIs implemented, on both sides:
  • Entities: AI, players, potions; most vanilla mob classes are real classes.
  • Rendering: entity renderers and models, OBJ and JSON models, framebuffers and shaders, particles.
  • GUIs: containers, vanilla screens as their 1.12 classes, config GUIs, HUD and chat.
  • Blocks and items: doors, fences, crops, leaves, redstone output, shields, anvils, tooltips; legacy recipes match.
  • Tile entities and fluids: vanilla tile entities and flowing Forge fluids.
  • World: world generation (biome layers, terrain events, structures), loot tables, natural mob spawning.
  • Systems: advancements, scoreboard, Forge player and client events.
• Mod entity renderers are created: before this, every 1.12.2 mod mob drew as a white box.
• Fixed freezes of the integrated server when a legacy tick handler or world generator read a chunk that was not loaded yet (Scape and Run: Parasites' spawner).
• Client-only mods (CTM) no longer crash dedicated servers. Bundled copies of Guava, MixinExtras and JOrbis no longer stop the game from booting.

1.7.10

• World.loadedEntityList is built once per tick: Portal Gun's world tick dropped a 140-mod pack to 10 TPS.

Other

• Roadmap: 1.2.5 after 1.16.5.