If you’re using dodge to try to run away, it doesn’t work like that anymore. However, it’s far from useless. In fact, it’s better than before, because it can be used to negate an attack. If you time your dodge to coincide with an attack, you can literally roll through it without any damage whatsoever.
There’s a thread about fighting the King Scorpion with the new dodge, where I posted a more detailed report about it.
Hope that helps.