What DLC is included in borderlands 2 season pass, and what is not included

I cannot find a clear list anywhere of what exactly is and what is not included in the Borderlands 2 Season Pass.

Solution 1:

• Captain Scarlett and Her Pirate's Booty
• Mr. Torgue's Campaign of Carnage
• Sir Hammerlock's Big Game Hunt
• Ultimate Vault Hunter Upgrade Pack
• Tiny Tina's Assault on Dragon Keep

Psycho Pack, Mechromancer Pack and others are not included in the Season Pass

source

Solution 2:

As of now (2013/05/16 10:14:20 CST), the following Borderlands 2 DLC has been released:

• Psycho Pack
• Ultimate Vault Hunter's Upgrade Pack
• Sir Hammerlock's Big Game Hunt
• Mr. Torgue's Campaign of Carnage
• Mechromancer Pack
• Captain Scarlett and her Pirate's Booty
• Borderlands 2 Collector's Edition Pack
• Creature Slaughterdome
• ... and numerous skin/head packs

Having purchased the Season Pass, I can tell you that the following DLC is part of the Season Pass:

• Sir Hammerlock's Big Game Hunt
• Mr. Torgue's Campaign of Carnage
• Captain Scarlett and her Pirate's Booty
• Ultimate Vault Hunter's Upgrade Pack
• Tiny Tina's Assault on Dragon Keep

And you get extra 11 levels!