ALCHEMY
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Alchemist - Set to a single level progressive perk: Your potions and poisons are 1% stronger per level of Alchemy
Experimenter - Set to a single level progressive perk: Level 50 Alchemy unlocks 2 learned effects, 75 Alchemy unlocks 3 effects, 100 Alchemy unlocks 4 effects

LIGHT ARMOR
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Agile Defender - Set to a single level progressive perk: Your armor rating for light armor increases by 1% per level of Light Armor
Custom Fit - Removed the requirement for light armor to be worn on your head, increased actual armor bonus from 20% to 25% to match description
Matching Set - Changed the requirement of a set from exactly 4 matching pieces to 3 or more matching pieces, increased actual armor bonus from 20% to 25% to match description
Unhindered - Reduced armor weight reduction from 100% to 50%

Adjusted the hidden spells that mimic Matching Set and Custom Fit to match the perks, although I believe they are mostly unused alternate implementations of the perk.


PICKPOCKET
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Maximum Pickpocket chance increased from 90% to 100%
Light Fingers - Set to a single level progressive perk: Pickpocketing bonus increases by 1% per level of Pickpocket
Night Thief - Increased Pickpocket bonus on sleeping targets from 25% to 90%

SNEAK
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NPC Line of Sight range decreased from 190 degrees to 135 degrees
Reduced weight of Sound in detection formula from 1.0 to 0.75
Increased weight of light in detection from 0.33 to 0.66
Increased noise factor of armor from 0.5 to 0.66
Reduced weight of Sneak skill in detection formula from 0.66 to 0.5
Increased NPC search time after being attacked from 15 seconds to 60 seconds
Increased NPC search time after detecting something from 10 seconds to 30 seconds
Increased Unarmed sneak attack multiplier from 2x to 3x

Enchantments that double your sneak attack damage now also work with unarmed attacks.

Stealth - Set to a single level progressive perk: You are 0.5% harder to detect while sneaking per level of Sneak
Muffled Movement - Removed perk and replaced with Acrobatics
Acrobatics - Replaces Muffled Movement, reduces damage received from falls by 0.75% per level of Sneak
Backstab - Unarmed attacks will also beneift from this perk
Assassin's Blade - Renamed "Assassin," no longer requires Deadly Aim as a prerequisit, now requires Backstab as a prerequisit, unarmed attacks will also benefit from this perk
Silence - Changed description to more accurately describe what the perk has always done (100% muffle)
Shadow Warrior - Removed perk and replaced with Escape
Escape - Replaces Shadow Warrior, once every 120 seconds while sneaking, you will evade the next melee attack upon yourself, turn invisible for 30 seconds, and paralyze enemies in the area for 5 seconds