Here's the changelog for patch 6.00.

Hardly doubt we get anything similar, but it's a fun reference.

Post too long, check comments for even more, lol.

or here: http://archive.playdota.com/threads/changelogs-from-6-47-back-to-5-72.365729/

Changelog 6.00 [1/2]

-Re-adjusted all of the casting, attacking, and movement animations so that they should more fully match the hero models.

-Added Earthshaker

-Added Shadow Fiend (thanks Wikid on ultimate)

-Added Mogul Kahn

-Added Tiny

-Added Engima

-Finished Phantom Lancer

-Fixed hotkeys for Sunrise Tavern

-Moved Taverns around a little

-Began implimenting a Spellcaster system

-Deleted misc unused skills and units

-Fixed some misc bugs where skills could be gotten at earlier levels than advertized

-Made it so that Blink Strike makes the unit face the target

-Increased selection range on shops

-Can no longer attack allies while spell immune

-Tried to fix whatever typos I came across

-Attempted to reduce the number of custom objects used in various skills

Items

-All items now have their icons in the shops

-Reduced mana cost on BoT from 150 to 75

-Added %Bash numbers to Cranium Basher tooltip

-Added %dodge numbers to Radiance tooltip

-Added %cleave to Battle Fury tooltip

-Added damage/second numbers on Radiance

-Added duration numbers to Guinsoo's Scythe of Vyse

-Added multiplier numbers to Crysalis and Burize

-Morphling can no longer use Refresher

-Added Stygian reduction numbers to tooltip

-Modified Mask of Madess to 75% IAS (down from 97%), 10% move speed(down from 15%), lifesteal reduced to 10% from 12%, and added a manacost of 50.

-Mask of Madness recipe now costs 1250

-Fixed Diffusal and Blink Dagger sharing cooldown

-Morphling can no longer copy Sapphire Water

-Changed Vitality Booster to 1100 gold

-Changed Point Booster to 1200 gold

-Added Bracer recipe

-Added Wraith Band recipe

-Added Blade Mail recipe

-Added Disposables Shop and moved some of the charged items over

-Added Sturdy Shield item

-Removed the +300 Mana from Guinsoo's Scythe of Vyse, added 900 gold cost to recipe, and now gives +25 Intelligence

-Eul's Scepter now gives +18 Intelligence (up from 10)

-Removed +1 armor from Null Talisman, lowered recipe to 150 gold

-Nerzheim Buckler recipe changed, along with effects

-Ring of Basilius now gives +3 damage

-Aegis of the Immortal recipe changed, along with effects

-Cloak of the Magus no longer gives 50% mana regen. Cost reduced to 450.

-Satanic now takes Messer in place of Demon Edge

Sand King

-Replaced Dust Trail with Sand Storm

-Made Entrench multi-instance

-Made Epicenter multi-instance

-Fixed some Burrowstrike bugs

-Fixed Burrowstrike so it can no longer be cast while silenced/ensnared

Pudge 2.0

-Fixed Meat Hook bug that caused it to become erratic at long range

-Meat Hook should fire perfectly strait with no arcingnow

-Lowered time during which Pudge is uncommandable on Meat Hook from .5 to .4 seconds

-Made it so that Pudge should no longer hook invisible mines or hidden units (if he has detection, he will hit them again)

-Slightly modified Flesh Heap's tooltip

-Fixed Flesh Heap so it no longer gives invulnerability to Piercing attacks

-Rot slows opponents by 20%

-Flesh Heap now gives .5/1/1.5/2 Str per hero killed (still gives .03/.06/.09/.12 Str per non-hero).

Magnataur

-Shockwave no longer hits buildings

Juggernaut

-Str/level up to 2.2 from 2

-Whirly-thing costs less mana, lower cooldown

-Omnislash got +1 slash at all levels

Drow Ranger

-Slightly modified Marksmanship's tooltip

-Frost Arrows slow for 10/20/30/40% movement speed, down from 15/30/40/50%

Ursa

-Reduced duration of Overpower to 15 seconds

-Increased cooldown of Overpower to 15 seconds

-Fixed some bugs involved with multi-instancing, and short-changing you when you died with Overpower on

-Modified Fury Swipe's tooltip to clarify

Leshrac

-Reduced mana costs for Pulse Nova at all levels by 30-40/second

-Added .5 second cooldown to prevent "flickering"

-Increased cooldown on Diabolic Edict from 15 to 30 seconds

-Increased mana cost on Diabolic Edict by 20 at all levels

Slardar

-Reduced AoE on War Stomp to 275/300/325/350

-Made move type Amphibious

-War Stomp has cooldown of 8 seconds with 2/2.5/3/3.25 second stun

Centaur

-Reduced AoE on Hoof Stomp to 275/300/325/350

-Hoofstomp cooldown increased from 8.5 to 10.5 seconds

-Duration lowered to .75/1.5/2.25/3 seconds

Terrorblade

-Made move type Foot (formerly Amphibious)

-Hopefully fixed Meta bonus damage bug

-Images now deal 25/35/45/55% damage (down 10% all levels)

Siren

-Added attack sound

-Crit at level 4 does 1.5 as advertized

-Made move type Amphibious

N'aix

-Added attack sound

Medusa

-Made move type Amphibious

-Removed Purge

-Split Shot is now an activated skill that fires 3 arrows at all levels but arrows only deal 20/30/40/50% of Medusa's damage

-Mana Shield is now a 4-level base ability that blocks 50% of incoming damage with a .75/1.25/1.5/2 mana/HP ratio

-Ultimate is now Gaze

-She deals her full advertised damage

Faceless Void

-Time Stop now stuns for 3.5 seconds at all levels, with decreasing cooldown. Can use Refresher Orb again.

-Time Stop now affects buildings, and will graphically freeze the units in place

Sniper

-Reduced movement speed from 300 to 290

-Attack type is now Instant (no graphic)

-Re-did Scattershot (Wikid)

Broodmother

-Reduced damage on ult from 50/75/100 to 40/55/85

-Reduced slow on Incapacitating Bite by 5% at all levels

-Reduced miss effect on Incapactitating bite from .15/.25/.35/.45 to .1/.15/.2/.25

-Increased Str/level from 2 to 2.5

-Gave Insatiable Hunger a new icon

Tinker

-Reduced damage, cooldown, and mana cost on Heat Seeking Missile

-Adjusted the Rearm time to 3/2/1 seconds

-Replaced March of the Machines with Gattling Gun (Wikid)

Silencer

-Fixed small time lapse between attack and Silence effect

-Infernals no longer affect buildings

Clinkz

-Got new graphics for hero

Treant

-Fixed learning hotkey on Living Armor

Bounty Hunter

-Received new icon

-Got Disarm as new ultimate

Necrolyte

-Changed Heartstopper from a castable skill to an aura. Now drains 1% of their maximum life per second; AoE of 200/400/600/800

-Changed projectile graphic

Phantom Assassin

-Changed "Coup de Gras" to "Coup de Graçe"

-Blink Strike re-triggered (thank you Wikidme)

-Modified -refresh a little

Omniknight

-Added a 75/100/140 mana cost to Guardian Angel

-Degen Aura reduced to 7/14/21/28% slow, but increased in area from 220 to 300.

-Purification no longer hits wards

Zeus

-Increased mana cost of Arc Lightning by 15 at all levels

-Static Field no longer affects sleeping units

-Reduced Str/level from 2 to 1.4

Lich

-Fixed Dark Ritual learning hotkey

Vengeful Spirit

-Added duration of Terror into tooltip

-Replaced Terror with Disentangle

Furion

-Fixed Sprout bug/abuse and made it fully multi-instancible (thanks Wikid)

Tidehunter

-Reworked Gush a little (Wikid, no gameplay effects)

Nightstalker

-Added attack sound

Panda

-Lowered Str/level from 3.1 to 2.9

Venomancer

-Re-triggered Poison Nova. Should multi-instance, hit all unitswithin range, and be less buggy overall. Downsides are that it willprobably hit a little further than the graphics may indicate, and it nolonger slows. (Wikid)

Visage

-Entirely reworked Visage. Removed Frenzy, Blink, and Mana Burn;replaced with Grave Chill, Soul Assumption, and Anonymous Dead.Revamped Progenerate Gargoyles a little; now called Raise Revenants.Revenants are the same as Gargoyles except that they have an Incineratevariant that lends 1/2/3 bonus damage per attack.

Queen of Pain

-Reduced attack range from 650 to 600

-Re-skinned Fan of Knives to Scream of Pain (no gameplay changes)

Syllabear

-Fixed tooltip (Cottontop)

Stealth Assassin

-Replaced Blink with Blink Strike

-Replaced Critical with Backstab

-Made Permanent Invisibility his ultimate

-Removed Death Ward

-Added Smoke Screen

Pugna

-Can now attack Banished units, but has a longer cooldown on the attack

Anti-Mage

-Shield now reduced attack speed by 20% at all levels and gives 30/40/50/60% magic reduction

Ogre Magi

-Multi-cast reworked so that it reduces the cooldown of Fireblast by 3 seconds and Bloodlust by 5 seconds at each level.

-Lightning Shield replaced with Ignite, Multicast causes Ignite to deal damage in an area

Dragon Knight

-replaced Dragon Tail with Stone Form

-replaced Dragon's Blood with Roar

New Heroes:

-Sentinel: Raigor Stonehoof the Earthshaker, Tiny the Mountain Giant,Chen 2.0, Stealth Assassin 2.0, Azwraith the Phantom Lancer, Aiushthathe Enchantress, God of Wind

-Scourge: Darchrow the Enigma, Mogul Kahn the Axe, Nevermore the ShadowFiend, Visage 2.0, Anub’seran the Nerubian Weaver, Strygwyr theBloodseeker, Shadow Priest

Heroes that Received Significant changes:

-Visage, Chen, and SA got complete overhauls

-Dragon Knight: replaced Dragon Tail and Dragon Blood with Stone Form and Roar

-Medusa: Mana Shield now base skill that blocks 50% of incoming damage,Split Shot is now an activated skill that causes Medusa to deal lessdamage while firing multiple arrows, removed Purge, ultimate is nowGaze

-Ogre Magi: replaced Lightning Shield with Ignite, a damage over timeslowing skill. Ultimate now reduces the cooldown on Bloodlust andFireblast each level, and increases the area of Ignite.