Board Thread:Dark Souls II/@comment-5264386-20131018105419/@comment-5264386-20131018110158

Mechanics Update (August 8th, 2013)

 * 1) Dodge rolls will provide less invulnerablity frames than what they did in DaSI.
 * 2) There will be a momentary pause before your stamina bar starts to regenerate.
 * 3) The Guard Break special attack will provide a knockback effect. To put it into perspective, the Guard Break's knockback will be larger than the kick's in DaSI.
 * 4) Estus will replenish as usual when resting at bonfires. However, there will be a *slightly* larger time frame after drinking the Estus that you cannot raise your shield. Other healing items will be present (as we already knew), but they are designed more for outside of combat.
 * 5) Characters will be able to equip three weapons to each hand.

Source
http://thecontrolleronline.com/2013/08/whats-new-in-dark-souls-2/