Some things to note:
Netty is screwy so currently can't join single player. @cpw
Crafting has been MAJORY reworked. The current GameRegistry functions are nooped, this is IN THE WORKS.
Just need to move the recipe list to a full class registry, and then re implement the in-code recipe registration.
Also, it IS advised that modders move to JSON, because ideally we'll see a S->C recipe syncing system in 1.13
which would allow servers to have custom recipes.
OreDictionary currently 1/2 works, need to write a better algorithm for replacing ingredients.
Please be patient
Rendering:
A lot of functions got a new float parameter, this is similar to partial ticks, needs more research
Please DO NOT use this in performance sensitive environments where you will have tons of things added to the listener list.
If that's the case define sub-classes as they have completely separate lists and will thus be more efficient when firing the event.
When combined with @Optional this should address all issues of soft dependancy on mods/apis.
This also addresses the issue of dynamic functionality in TileEntities/Entities.
Current capability providers: TileEntity, Entity, ItemStack
Also added INBTSerializeable, a generic interface for game objects that can be written to/from NBT tags.
Vanilla capabilities will be coming soon, mostly on request and review.
So start requesting capabiliteis on vanilla/Forge features.
LexManos