# 3.4.2 - Added: Creative tab for BC items. - Added: 3D rendering of items in pipes. (cpw) - Removed: Functionality from builder until it can be fixed to prevent world corruption. (pahimar) - Bugfix: Fixed fuel burning in combustion engines. Yielded one tick too much energy before. (snyke7) - Bugfix: Fixed quarries breaking bedrock. (CovertJaguar) - Bugfix: Pipe gui closes when pipe is destroyed. (aznhe21) - Bugfix: Fixed display issues due to overflow on combustion engines. (psxlover) - Bugfix: Added a sanity to check to emerald pipes to prevent crashes when another mod returns an invalid itemstack.