Block Change: Piston Launch Intensity
Pistons will now have a more or less intense push force, depending on how powerful the redstone signal powering it is.
An extremely powerful signal can end up sending players several meters into the air, while a less powerful signal could barely have any effect.
So if you ever wanted to forcibly launch players outside your base without using a dangerous and resource-consuming TNT cannon, now you can!
Launch intensity also applies to how far Mobs and Gravity-Effected Blocks (like Sand and Gravel) can be launched.