Major things to note:
Class renames: https://gist.github.com/LexManos/44dd211f90f498ad4015279b103dff86
Tile Entities are now packed in the ChunkData packet.
Forge intends to work around this to better support large moded worlds, but for the time being modders should implement the new function carefully and only send what data they need to!
Minecraft's codebase now has annotations, these are directly from Mojang and should be adheared to!
Added support for package-info.java's containing @Nullable information for all MC code base.
Modders can now modify and reference internal elements of a loot table by name.
Editing can ONLY be done in the event and any external editing will cause a exception to be thrown.
See this gist for more information: https://gist.github.com/LexManos/77c983d67b9ad27010428478b66d50fd
Added detection of mods that rely on Java 8 and a graceful error screen.
The nag screen will be shown once a day. It can be disabled by editing the forge.cfg.
However it is HIGHLY recomended that user update to Java 8.
Currently, all blocks placed by players that are not TE's run physics
twice. Blocks that contain a TileEntity are not affected due to a check in
'ForgeHooks.onPlaceItemIntoWorld'.
In order to fix the problem, 'Chunk.setBlockState' will now verify if
blocks are being captured before running onBlockAdded and if so, only run
physics if the block has a tileentity. This check also prevents blocks
such as TNT's from running its physics (explosion) when placement event is
cancelled.
Currently, all blocks placed by players that are not TE's run physics
twice. Blocks that contain a TileEntity are not affected due to a check in
'ForgeHooks.onPlaceItemIntoWorld'.
In order to fix the problem, 'Chunk.setBlockState' will now verify if
blocks are being captured before running onBlockAdded and if so, only run
physics if the block has a tileentity. This check also prevents blocks such
as TNT's from running its physics (explosion) when event is cancelled.