With less than three weeks to go before The International 9, Dota 2 creators Valve has released the final patch update - 7.22f - before the event in Shanghai.

The 7.22f patch includes relatively minor changes to the game, with the exception of Tinker.

The changes to Tinker in the latest gameplay update are:

Level 10 Talent increased from +100 Cast Range to +125 Level 10 Talent increased from +8% Spell Amplification to +10% Level 15 Talent changed from +15% Spell Lifesteal to +11% Manacost/Manaloss Reduction

Leamare is a Dota 2 fan specialising in statistical analysis of the game via his website Spectral.gg.

Asked for his initial reaction to the 7.22f patch, he said: "All the changes are mostly minor and won't affect the meta too much. The only change that may be valuable in a long run is Tinker buffs.

"Tinker changes are the biggest. While all other heroes mostly have small number tweaks that won't affect how heores work, Tinker had a lot of buffs in preceding patches.

"Aside from that, he got a new talent – manacost/manaloss reduction, which is effectively 11% increase of his manapool at any stage of the game. I believe this may be the game-changer."

7.22f patch changes

The full list of changes in the 7.22f gameplay update published on the Dota 2 official blog:

ITEMS

AGHANIM'S SCEPTER

Consuming recipe cost reduced from 2000 to 1800

HEROES

ABADDON

Base attack speed increased from 115 to 120

Base armor increased by 1

ANCIENT APPARITION

COLD FEET

Cold Feet distance to travel reduced from 740 to 715

ICE BLAST

Ice Blast manacost increased from 150 to 175

TALENTS

Level 15 Talent reduced from +20 Health Regen to +15

BEASTMASTER

PRIMAL ROAR

Primal Roar knockback now destroys any trees the units come into contact with

BLOODSEEKER

Base movement speed increased by 5

BOUNTY HUNTER

SHURIKEN TOSS

Shuriken Toss manacost reduced from 150 to 135

BREWMASTER

Base intelligence increased by 1

CENTAUR WARCHIEF

RETALIATE

Retaliate damage reduced from 6/9/12/15% to 6/8/10/12%

CHAOS KNIGHT

REALITY RIFT

Reality Rift cooldown reduced from 20/15/10/5 to 14/11/8/5

CHEN

Base movement speed reduced by 5

DIVINE FAVOR

Divine Favor cooldown increased from 90/80/70/60 to 120/100/80/60

CLOCKWERK

HOOKSHOT

Hookshot stun duration increased from 1/1.5/2 to 1.5/1.75/2

CRYSTAL MAIDEN

Base armor reduced by 1

DARK SEER

VACUUM

Vacuum damage increased from 25/50/100/200 to 50/100/150/200

DARK WILLOW

TERRORIZE

Terrorize duration reduced from 4 to 3.5/3.75/4

Terrorize cooldown increased from 100/80/60 to 100/90/80

DRAGON KNIGHT

ELDER DRAGON FORM

Elder Dragon Form Scepter magic resistance increased from +30% to +40%

TALENTS

Level 20 Talent increased from +180 Gold/Min to +210

DROW RANGER

Base strength increased by 1

Base agility increased by 1

TALENTS

Level 15 Talent increased from +30% Gust Blind to +40%

ELDER TITAN

ECHO STOMP

Echo Stomp manacost reduced from 100 to 85/90/95/100

EMBER SPIRIT

Base armor reduced by 1

ENIGMA

Base intelligence reduced by 2

GRIMSTROKE

Base damage reduced by 4

INVOKER

Base intelligence increased by 1

COLD SNAP

Cold Snap damage increased from 7->56 to 8->64

JUGGERNAUT

Base agility reduced by 2

Base strength reduced by 1

KEEPER OF THE LIGHT

WILL-O-WISP

Will-O-Wisp radius increased from 700 to 725

LUNA

Base damage increased by 2

LYCAN

FERAL IMPULSE

Feral Impulse damage increased from 12/24/36/48% to 14/26/38/50%

HOWL

Howl bonus regen increased from 4/8/12/16 to 6/10/14/18

MARS

Base damage reduced by 2

GOD'S REBUKE

God's Rebuke critical strike reduced from 160/200/240/280% to 150/190/230/270%

MORPHLING

WAVEFORM

Waveform cast range reduced from 1000 to 700/800/900/1000

MORPH

Morph cast range reduced from 1000 to 700/850/1000

NATURE'S PROPHET

Intelligence gain increased from 3.3 to 3.5

NECROPHOS

Base intelligence increased by 1

DEATH PULSE

Death Pulse radius increased from 475 to 500

NIGHT STALKER

Base movement speed increased by 5

OMNIKNIGHT

PURIFICATION

Purification cooldown increased from 14/13/12/11 to 17/15/13/11

TALENTS

Level 20 Talent reduced from +5 Mana Regen to +4

OUTWORLD DEVOURER

ASTRAL IMPRISONMENT

Astral Imprisonment cooldown increased from 22/18/14/10 to 24/20/16/12

SANITY'S ECLIPSE

Sanity's Eclipse manacost increased from 175/250/325 to 200/325/450

PHANTOM ASSASSIN

Base damage increased by 1

TALENTS

Level 10 Talent increased from +200 Health to +225

PUDGE

MEAT HOOK

Meat Hook manacost reduced from 140 to 125/130/135/140

RIKI

BLINK STRIKE

Blink Strike cast range increased from 500/600/700/800 to 600/700/800/900

TALENTS

Level 20 Talent reduced from +700 Blink Strike Cast Range to +600

SKYWRATH MAGE

MYSTIC FLARE

Mystic Flare damage increased from 700/1150/1600 to 750/1175/1600

SLARK

Base damage reduced by 1

TALENTS

Level 20 Talent reduced from +1.25s Pounce Leash to +1s

SPIRIT BREAKER

BULLDOZE

Bulldoze manacost from 25/30/35/40 to 30/40/50/60

NETHER STRIKE

Nether Strike damage reduced from 120/185/250 to 100/175/250

SVEN

STORM HAMMER

Storm Hammer stun duration reduced from 1.4/1.6/1.8/2 to 1.25/1.5/1.75/2

TERRORBLADE

Level 10 increased from +10% Evasion to +15%

METAMORPHOSIS

Metamorphosis Scepter fear duration increased from 3 to 3.75

TINKER

TALENTS

Level 10 Talent increased from +100 Cast Range to +125

Level 10 Talent increased from +8% Spell Amplification to +10%

Level 15 Talent changed from +15% Spell Lifesteal to +11% Manacost/Manaloss Reduction

TUSK

Base armor increased by 1

UNDERLORD

PIT OF MALICE

Pit of Malice cooldown reduced from 24/22/20/18 to 22/20/18/16

DARK RIFT

Dark Rift cooldown reduced from 130/120/110 to 130/115/100

VENGEFUL SPIRIT

MAGIC MISSILE

Magic Missile manacost reduced from 110/120/130/140 to 100/110/120/130

VIPER

TALENTS

Level 25 Talent increased from +120 Damage to +160

WEAVER

Base armor increased by 1

WRAITH KING

MORTAL STRIKE

Mortal Strike manacost increased from 30/45/60/75 to 50/60/70/80

WRAITHFIRE BLAST

Wraithfire Blast base damage reduced from 100 to 70/80/90/100

ZEUS

Base intelligence increased by 1

Picture: Firstblood