New patch notes

Arms
- Colossus Smash now costs 20 rage, down from 30 rage.

Fury
- Inner Rage now has a 1.5 sec cooldown.
- Dual Wield Specialization (Passive) now only increases Physical damage by 10% instead of all damage.

Protection
- Concussion Blow now scales from 75% of Attack Power, up from 38%
- Mastery: Critical Block now increases your chance to critically block by 20%, up from 10%. Each point of mastery now increases your block chance by an additional 1.25% and your critical block chance by an additional 2.5% (Up from 1.25%).

Not sure what the Innner rage change brings, but I like the change to the Prot Mastery. Looks like we won't need to wait the end game tiers to start profiting from this ability...