OptiFine 1.7.10_HD_B6 
 - removed reference to MinecraftProfileTexture
 - fixed "java.lang.NoSuchMethodError: com.mojang.authlib.minecraft.MinecraftProfileTexture" when Authlib is silently updated to 1.5.21
 (17.04.2015)
 
OptiFine 1.7.10_HD_B5 
 - optimized chunk rendering, FPS +30% is possible
 - report OpenGL errors in chat
 - updated Forge compatibility
 - compatible with Forge #1291
 (30.01.2015)

OptiFine 1.7.10_HD_B4 
 - various bugfixes
 - fixed Forge compatibility
 - compatible with Forge #1240
 (19.12.2014)

OptiFine 1.7.10_HD_B1 
 - fixed Forge compatibility
 - compatible with Forge #1240
 (12.12.2014)

OptiFine 1.7.10_HD_A4 
 - fixed compatibility with Railcraft and IC2
 - compatible with Forge #1180
 (07.07.2014)