Minecraft 1.7 is out, and that means what was once the Piston Mod, is now officially Mojang Specficiations certified. Why are pistons so great? Because you can make self-repairing bridges with them, that’s why.

Here’s the full patch notes from Notch’s Blog:

1.7:

+ Added pistons
+ Fire or redstone is now required to trigger TNT
+ Fences can be stacked
+ Added shears
+ Shears can be used to pick up leaf blocks
+ Shears can be used to shear sheep without hurting them
* Sheep no longer drop wool from being punched
- Removed Herobrine

Source: The Word of Notch