Java Edition guides/Beta 1.7 releases

This guide is a simplified overview of all the changes in the Beta 1.7.x releases, which assumes at least some familiarity with Beta 1.6.x releases.
== Mobs ==
=== Changed ===
Sheep		
*No longer drop wool when punched.
*Can now be sheared.
== Blocks ==
=== New ===
Piston 			
*Pickaxe	
*Can be used to push blocks.
Sticky Piston			
*Pickaxe	
*Can be used to push and pull blocks.
=== Changed ===
Cobblestone		
*Texture changed.
Bricks 		
*Texture changed.
TNT 		
*Now detonated using flint and steel instead of by punching it.
== Items ==
=== New ===
Shears			
*Can be used to obtain wool from sheep.
*Can be used to obtain leaves.
zh:Java版指南/Beta 1.7版本