Dodge and Shadowrun 4a, Changes in dodging in the anniversary edition Options

[Juca Bala]

Well, I've been playing SR4 for some time by now and, recently, came in contact with the anniversary edition. It seems to correct some issues that I had with the older version and so I'm satisfied with it.
Nevertheless, I'm having a hard time understanding the new rules on dodge. In some parts it looks like its like the older version , where you have a dice pool equals to your Reaction, while in some others the dice pool is equal to your Reaction+Dodge... Did they decided to increase the dice pool in the new version? How does it stands in play now? Does the characters became pretty much "unhittable"?

Thanks!

[Combat Mage]

Regular Defense against ranged attacks is still Reaction only. When you go on full defense you can add Dodge or Gymnastics.

Against melee attacks you get Reaction + Skill (Dodge, Unarmed or Weapon Skill) (or + 2x Skill when on full defense).

[Brazilian_Shinob...]

I know you always roll Reaction + Dodge/Unarmed Combat/Blades/Clubs when in melee to avoid hits and purely Reaction for ranged attacks. WHEN you are in full defense, you roll reaction + dodge for ranged and reaction + 2*(Dodge/Unarmed Combat/Blades/Clubs) for melee.

Edit: Ninjaed by Combat Mage