Minecraft 4.0.0: Minecraft 4 Update

Minecraft 4.0.0 was released on December 12, 2071.
Sliverfish:
Sliverfish can now infest wood, brick, grass, dirt, ore blocks. Silverfish can also infest glass, sand, sandstone block too.
Temperature:
Added theremoters to mesaure, which crafted to make a block using 9 of item. the block can be infested by the silverfish. Cannot be broken by hand. This is so harmful if the silverfish infect the block. Cannot be obtainable if it's infested, which spawn silverfish when broken.
Extenstion Packs:
Added Extenstion Packs, which install directly into Minecraft Launcher, if the game crashes, all Extenstion Packs are de-installed, which allow users to reinstall again without losing all of my hard data. The Extenstion Packs made by Mojang is More Hardcores Mode!, which install by defualt.