Editions Information OptiFine HD B2 Ultra for Minecraft 1.3.2 
(has all the features of Standard, Smooth, Multi-Core and AA, highly configurable) 
 
The option "Video Settings -> Chunk Loading" switches between Standard, Smooth and Multi-Core chunk loading. When using "Chunk Loading: Multi-Core" make sure to Disable "Threaded Optimization" / "OpenGL Threading"  in the graphics card control panel (example). For best results disable it globally, not only for java.exe or minecraft.exe. 
 
OptiFine 1.3.2_HD_U_B2 (fixed: RandomMobs changing skins, handheld items with Forge, handheld watch/compass with AA/AF, CTM check by ID and metadata, CTM symmetry = all, CTM and sideways logs, Forge compatibility, right-aligned HD fonts, VSync; known problems: Extreme Render Distance inactive, not compatible with Forge)   |