We've got a new intermediate build for internal testing. The most important changes are: SMP support, some items/TEs might still have bugs or suffer from kick issues (jetpack, quantum suit etc.) Support for MC 1.8.1 New Audio API without using AudioMod, not all sounds are included yet and most are still wip Sounds are included in the main package New cable bounding boxes and interaction raytracing New explosion code which is more block resistance aware, affects nukes, reactors, ITNTs, mining lasers and machine explosions A single .minecraft/mods compatible package for drag & drop install similar to BuildCraft Fiber cable receipe output reduced to 6 Tin cable loss increased to 0.025 Support indirect redstone on IC2 blocks Scrapboxes can be opened by dispensers SU batteries can charge items in the quickbar The mass fabricator stops with redstone input Personal chests are always unlocked in SP Receipes for small iron dust, nuke and dynamite-o-mote Improved unloaded chunk handling in the EnergyNet code Configuration options for the nuke and reactor explosion power and for disabling IC2 sounds Bugfixes Client downloads (install in the order mentioned): ModLoader -> minecraft.jar: http://www.minecraftforum.net/topic/75440-v181-risugamis-mods-everything-updated/ ModLoader MP -> minecraft.jar: http://www.minecraftforum.net/topic/182918-181-173smp-flans-mods-planes-ww2-guns-vehicles-playerapi-moods-mputils-teams/#MLM ModLoader MP fix -> minecraft.jar: http://player.to/ic2_20110925_v112/modloadermp-client_fix.7z Minecraft Forge -> minecraft.jar: http://www.minecraftforum.net/topic/514000-api-minecraft-forge/ IndustrialCraft 2 -> mods folder: http://player.to/ic2_20111003_v115/industrialcraft-2-client_1.15.jar Server downloads (install in the order mentioned): ModLoader MP -> minecraft_server.jar: http://www.minecraftforum.net/topic/182918-181-173smp-flans-mods-planes-ww2-guns-vehicles-playerapi-moods-mputils-teams/#MLM ModLoader MP fix -> minecraft_server.jar: http://player.to/ic2_20110925_v112/modloadermp-server_fix.7z Minecraft Forge -> minecraft_server.jar: http://www.minecraftforum.net/topic/514000-api-minecraft-forge/ IndustrialCraft 2 -> mods folder: http://player.to/ic2_20111003_v115/industrialcraft-2-server_1.15.jar Addon developer downloads (not required for users) IC2 API http://player.to/ic2_20111003_v115/industrialcraft-2-api_1.15-src.zip I recommend using a fresh minecraft.jar without any IC content and without AudioMod. Do not put IC in minecraft.jar, just copy the package into .minecraft/mods. You'll have to create the mods folder if it doesn't exist If minecraft crashes with java.lang.OutOfMemoryError, make sure that the amount of memory you assigned to minecraft + 200 MB doesn't exceed the amount of spare memory before starting it. E.g. if you have 1500 MB free memory, allocate not more than 1300 MB to minecraft (-Xmx1300M -Xms512M). Virtual memory doesn't count. Another possible fix is to upgrade the sound system, just replace the existing files within minecraft.jar with the contents of http://player.to/ic2_20111003_v115/soundsystem_update.zip.