Please note that this is not verified. Its just a rumored paste going around. I do not vouch for its authencitiy.
Check the links at the end for the source where i got it from.
Alchemist:
Acid Spray cooldown increased from 22 to 27
Unstable Concoction maximum stun duration decreased from 1.75/2.5/3.25/4 to 1.25/1.75/2.5/3.25
Arc Warden:
Flux duration increased from 6 to 7
Magnetic Field AoE decreased from 275 to 250
Ancient Apparition:
Cold Feet mana cost decreased from 150 to 90/110/130/150
Cold Feet stun duration rescaled from 1.25/2/2.75/3.5 to 1.5/2.25/2.75/3.5
Axe:
Counter Helix chance increased from 17% to 20%
Berserker's Call radius increased to 350
Berserker's Call mana cost decreased from 80/90/100/110 to 80
Bane Elemental:
Cast animation time increased from 0.5 to 0.7
Batrider:
Movement speed decreased from 290 to 285
Attack range decreased from 375 to 330
Sticky Napalm turn rate slow rescaled from 70% to 40%/50%/60%/70%
Bloodseeker:
Thirst radius increased from 6000 to 7500
Bristleback:
Cast duration changed to 0.3
Broodmother:
Insatiable Hunger can no longer be purged
Spiderling movement speed increased to from 350 to 375
Spiderling base attack time from 1.35 to 1.0
Spiderite bounty decreased from 16-21 to 11-13
Spiderling bounty increased from 11-13 to 15-20
Chen:
Base strength decreased by 3
Centaur Warchief:
Hoof Stomp cooldown decreased from 13 to 8
Crystal Maiden:
Base movement speed increased from 280 to 290
Dark Seer:
Vacuum no longer stuns enemy units while moving them
Vacuum cooldown increased from 24 to 26
Dazzle:
Shadow Wave cooldown decreased from 12/10/8/6 to 11/9/7/5
Shadow Wave bounce radius increased from 475 to 550
Death Prophet:
Silence AoE increased from 350 to 350/375/400/450
Witchcraft cooldown decrease increased from 1/2/3/4 to 1.5/2.5/3.5/5
Exocism spirit damage increased from 43-48 to 45-50
Disruptor:
Strength gain increased from 1.9 to 2.3
Kinetic Field formation time decreased from 1.2 to 1
Doom Bringer:
Int growth from 2.1 to 2.5
Scorched Earth cooldown decreased from 60/55/50/45 to 55/45/35/25
Dragon Knight:
Base armor decreased by 1.5
Dragon Tail stun duration rescaled from 2.5/2.75/3/3.25 to 1,5/2/3/3.25
Earth Spirit:
Turn rate increased from 0.6 to 1.0
Stone replenish rate increased from 25 to 30 seconds
Enigma:
Added Aghanim's Scepter:
Cast range increased to 300
Enemies in a 850 AoE have their turn rate slowed by 55% and are pulled towards the center of the Black Hole at 100ms if they are facing it
Duration increased from 4 to 4.5
Furion:
Treant bounty increased from 21-26 to 20-35
Treant sight range decreased from 1200/800 to 800/800
Goblin Shredder:
Added Aghanim's Scepter
Increases Chakram speed from 900 to 1000
Allows Goblin Shredder to latch to his Chakram with Timber Chain
Gyrocopter:
Flak Cannon now only deals Gyrocopter's base damage
Flak Cannon maximum attacks increased from 3/4/5/6 attacks to 4/5/6/7
Call Down mana cost increased from 125 to 200
Huskar:
Added to Captain's Mode!
Base armor decreased by 1
You can now deny yourself with the self-damage of Burning Spears.
Burning Spears can no longer be used while in Ethereal form.
Io:
Tether maximum radius rescaled from 900 to 500/550/600/750
Tether movement speed bonus decreased from 17% to 7%/10%/13%/16%
Juggernaut:
Healing Ward movement speed increased from 300 to 350
Healing Ward cooldown decreased from 60 to 50
Lifestealer:
Base armor decreased by 1
Movement speed decreased from 315 to 310
Lone Druid:
Spirit Bear bounty increased from 300 to 350
Lycanthrope:
Howl unit bonus damage increased from 4/8/12/16 to 5/10/15/20
Shapeshift duration rescaled from 18 to 15/20/25
Medusa:
Mystic Snake movement speed increased to 833, return speed to 1033
Meepo:
Clones now carry all the auras the prime Meepo does
Morphling:
Attack range increased from 350 to 380
Necrolyte:
Base strength increased by 3
Strenght growth from 2 to 2.3
Heartstopper Aura HP loss increased from 0.6%/0.9%/1.2%/1.5% to 0.7%/1.2%/1.5%/2%
Nerubian Assassin:
Mana Burn range decreased from 600 to 500
Nerubian Weaver:
Movement speed decreased from 290 to 280
Ogre Magi:
Fireblast and Unrefined Fireblast stun duration decreased from 1.5 to 1
Multicast now fully refreshes the stun duration of Fireblast
Obsidian Destroyer:
Essence Aura base mana bonus removed
Omniknight:
Purification heal works on magic immune units (damage is still pure and doesn't damage immune units)
Degen Aura reworked:
Radius increased to 400
Slow decreased to 5%/10%/15%/20%
If an enemy unit dies in the radius of Degen Aura, an illusion of them that does 20% damage and takes 450% incoming damage is created for 20 seconds. Illusions have their movement speed fixed at 400 and carry the same level of Degen Aura as Omniknight
Both movement and attack slow of Degen Aura from multiple units now stack
Illusions appear as the fake for both teams
Oracle:
Purifying Flames mana cost increased from 30/45/60/75 to 75
Movement speed decreased from 305 to 295
Pandarean Brewmaster:
Thunder Clap cooldown decreased from 12 to 8
Pugna:
Strength growth from 1.2 to 1.65
Nether Blast delay decreased from 0.9 to 0.5 seconds
Nether Blast cooldown rescaled from 5.5 to 8/6/5/4
Decrepify no longer slows allied units.
Decrepify mana cost decreased from 100 to 65¨
Life Drain slightly reworked:
Pugna can move during the channel with a fixed movement speed of 150. Attacking, using items or getting disabled will still break the channel.
Puck:
Phase Shift cooldown increased from 6 to 8
Phantom Assassin:
Phantom Strike can be cast on magic immune units.
(wow that sounds not fair)
Base attack time decreased from 1.7 to 1.6
Phoenix:
Sunray HP cost increased from 4% to 5%
Rikimaru:
Using items and abilities won't reveal Rikimaru in Permanent Invisibility
( hmm really? )
Movement speed increased from 300 to 310
Rubick:
Telekinesis now ends if Rubick and the targeted unit are moved 675 units away from each other
Spell Steal mana cost increased from 25 to 65
Sand King:
Sandstorm now gives 10%/15%/20%/25% miss chance to enemies in the AoE
(sounds legit)
Shadow Shaman:
Mass Serpent Ward increases 8/9/10 wards instead of 8 at all levels
Mass Serpent Wards can no longer be phased through
Silencer:
Global Silence cast time changed to instant
Skeleton King:
Hellfire Blast slow increased from 20% to 25%
If a unit affected by Mortal Strike dies before the end of its duration, Skeleton King instantly regains the passive critical strike and drained health won't be returned.
Reincarnation now stuns units for 1/1.5/2 seconds at the end of the slow.
Auras carried by Skeleton King stay in effect during Reincarnation.
Skywrath Mage:
Arcane Bolt cooldown decreased from 5/4/3/2 to 4.5/3.5/2.5/1.5
Slardar:
Strength growth increased from 2.8 to 3.15
(really? he needed more strength?)
Cooldown decreased from 28 seconds to 25
(whose cooldown? )
Sprint can be cancelled by activating it again on its duration
(didnt think sprint was so bad)
Amplified damage taken from Sprint will always be pure (instead of same damage type)
Amplify Damage cast range increased from 700 to 850
Amplify Damage cooldown decreased from 10 to 10/8/6
Sniper:
Shrapnel effect delay removed.
Shrapnel mana cost rebalanced from 120 to 75/85/95/120
Shrapnel cooldown decreased from 15 to 12
Headshot stun duration increased from 0.25 to 0.3
If Headshot procs on a unit in the AoE of Shrapnel, the mini-stun will happen twice (damage will be taken from only one headshot)
Assassinate mana cost decreased from 175 / 275 / 375 to 150 / 250 / 350
Spectre:
Desolate radius decreased from 325 to 275
Spirit Breaker:
Base armor decreased by 1
Empowering Haste speed bonus rescaled from 6% / 10% / 14% / 18% to 5% / 10% / 15% / 20%
Tidehunter:
Kraken Shell damage reduction rescaled from 7/14/21/28 to 5/10/20/25
Kraken Shell now blocks all damage types (does a triggered heal instead of damage block)
Kraken Shell damage treshold decreased from 600 to 550
Treant Protector:
Nature's Guise mana cost decreased from 90/80/70/60 to 80/70/60/45
When a unit invisible with Nature's Guise leaves the proximity of trees the buff is no longer removed, but the invis will stay in fade time unti the unit gets near trees again.
Living Armor damage block instances increased from 4/5/6/7 to 6.
Living Armor damage block increased from 20/40/60/80 to 30/40/60/85
Living Armor's cast range is reduced from global to 900 during the night
Tuskarr:
Strength growth increased from 2.3 to 2.7
Snowball has a minimum movement speed of 300
Snowball stun duration on main target increased from 0.5/0.7/1/1.25 to 1/1.25/1.5/2
Snowball cooldown decreased from 21 to 15 seconds
Units continue to be immune to damage for 0.33 seconds after snowball ends (but are still affected by stuns etc)
Undying:
Decay strength steal increased from 4 to 5
Venomancer:
Plague Ward caste range increased from 850 to 1000
Plague Wards have the same level of Poison Sting as Venomancer
Visage:
Soul Assumption damage detection radius decreased from 1375 to 900
Witch Doctor:
Paralyzing Cask's initial hit on heroes stuns the target for 1.5 seconds (bounces still stun for 1 second)
Paralyzing Cask bounces increased from 2/4/6/8 to 2/4/8/10
Voodoo Restoration inital mana cost decreased from 25/50/75/100 to 50 on all levels
Zeus:
Attack range increased from 350 to 450
Base damage increased by 6
Movement speed decreased from 295 to 290
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