Link: Volibear Patch Notes | LoL - League of Legends

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Thunder Lord Volibear
Northern Storm Volibear
Silverfang Akali
Imperial Lux
League of Legends v1.0.0.130
Volibear, the Thunder’s Roar

Rolling Thunder: Volibear drops to all fours and runs faster if chasing an enemy champion. The first enemy he attacks is knocked into the air and flung behind Volibear.
Frenzy: Volibear's repeated attacks grant him additional attack speed. Once Volibear has repeatedly attacked three times, he can perform a vicious bite on his target.
Majestic Roar: Volibear lets out a powerful roar that damages and slows enemies. Minions and monsters are feared as well.
Thunder Claws: Volibear channels the power of the storm causing his attacks to blast his targets with lightning that bounces to other nearby enemies.
Chosen of the Storm (passive): Volibear heals rapidly for a few seconds when his health drops to a critical level.
Fizz

Urchin Strike's targeting updating to hit targets slightly earlier
Urchin Strike's attack component can no longer be dodged
Jarvan IV

Martial Cadence (Passive)
Damage changed to physical from magic
Damage changed to 6/8/10% (at levels 1/7/13) of the target's current health from 8%
No longer procs spell effects such as Rylai's or Spell Vamp
Increased the hitbox size of Demacian Standard when targeted by Dragon Strike
Karthus

Wall of Pain
Wall duration reduced to 5 seconds from 7
Now only affects a target once (instead of reapplying every pass through)
Fixed a bug where Leona's passive and the Dominion center Sigil could cause an immediate double kill against Karthus
Kassadin

Fixed a bug which caused Force Pulse to cast backwards after performing Rift Walk
Katarina

Shunpo now always moves Katarina behind the target regardless if Killer Instincts is active
Kog'maw

Fixed a bug where where if you killed an enemy that exploded using Icathian Surprise, the enemy was awarded an extra kill (Shaco Hallucinate clone, Maokai)
Fixed a bug where Brand's Pyroclasm would give Brand an extra kill if it was traveling toward Kog'maw when Icathian Surprise triggered
Fixed a bug where if Ignite killed Kog'maw, it would cause Icathian Surprise to not trigger
Fixed a bug where Vayne's Silvered Bolts sometimes caused Icathian Surprise to not trigger
Riven

Blade of the Exile tooltip updated to display how much attack damage you will gain. It has also been clarified to state that Blade of the Exile scales off TOTAL attack damage, not bonus attack damage.
Sivir (Remake)

General
Attack range increased to 500 from 425
Attack missile speed increased to 1400 from 1200
Updated her attack frames to be more responsive
Base attack speed reduced to .658 from .679
Base attack damage reduced to 49 from 52.11
Updated recommended items
Fleet of Foot (Passive) – Remake
Sivir’s basic attacks against enemy champions grant her 50 Movement Speed for 2 seconds
Boomerang Blade
Mana cost reduced to 70/80/90/100/110 from 80/90/100/110/120
Damage changed to physical from magic
Bonus attack damage ratio increased to 1.1 from 1.0
No longer has an ability power ratio
Ricochet - Remake
Sivir’s next basic attack bounces to 5 additional targets dealing 20/35/50/65/80 (+ 1.0 Attack Damage) physical damage to the first target and 25% reduced damage to each subsequent target. 7/6/5/4/3 second cooldown. 40 Mana cost.
On The Hunt
Now additionally applies the buff to allies who come into range while On the Hunt is active rather than only on activation.
Attack speed bonus changed to 30/45/60% from 30/60/90%
Allied attack speed gain increased to half of Sivir’s bonus from a third
Cooldown adjusted to 100/90/80 seconds from 90
Taric

Shatter ability power ratio increased to 0.6 from 0.4
Radiance ability power ratio increased to 0.7 from 0.6
Vayne

Fixed a couple small bugs introduced to Condemn with Fizz patch
Yorick

Fixed a bug where Ignite's tick damage dealing the killing blow caused Omen of Death to fail to reanimate its bearer
Fixed a bug where Leona's Sunlight passive and the Dominion center Sigil could cause an immediate double kill against the Omen of Death target
Fixed a bug where if Ignite killed the Omen of Death bearer, they would not be reanimated
Fixed a bug where Vayne's Silvered Bolts sometimes caused Omen of Death to fail to reanimate its bearer
Items

Health Potions now restore 150 health over 15 seconds (instead of 200 health over 20 seconds)
Madred's Razor
Proc chance increased to 20% from 15%
Proc damage reduced to 300 from 500
Mana Potions now restore 100 mana over 15 seconds (from 100 over 20)
Wriggle's Lantern proc damage reduced to 425 from 500
General

Chat window location will be now saved between games
Improved the targeting algorithms; it should now be much easier to select units that are obscured
Damage from lane minions to champions reduced by about 15%
Jungle Adjustments
Small camps now respawn faster, but have reduced rewards
Small camps now have a Healing Sigil, healing the killer based upon how much health they are missing
Neutral monsters now have their health, damage, experience reward, and gold reward increase with game length, instead of having health increases with each respawn
Neutral monster experience range reduced to 400 from 800 (the killer always gets experience)
Ancient Golem camp experience increased slightly and gold reduced slightly
Crest of the Ancient Golem now grants 25 flat MP5, but grants 1% regen from maximum mana, from 1.5%, and provides energy
Lizard Elder camp experience increased and gold reduced slightly
Blessing of the Lizard Elder melee slow % reduced to 8/16/24% from 10/20/30%
Dragon and Baron Nashor are now immune to armor and magic resist-shredding effects
Baron Nashor will now push wards away if you try to place one too close
Monsters now heal 5% immediately when they retreat (instead of after 1 second), but are easier to re-aggro

Cuánto duró el cambio de la kat? 2 semanas? 3? jajaj...