Minecraft: Redstone Update

"Minecraft: Redstone Update adds several new redstone-related blocks, including the comparator, hopper, dropper, daylight sensor, trapped chest, weighted pressure plates, and block of redstone, as well as a new block called block of quartz, a scoreboard system, a new texture pack format, and a lighting engine optimization."

Mojang Studios· March 13, 2013· Update

Minecraft: Redstone Update adds several new redstone-related blocks, including the comparator, hopper, dropper, daylight sensor, trapped chest, weighted pressure plates, and block of redstone, as well as a new block called block of quartz, a scoreboard system, a new texture pack format, and a lighting engine optimization.