Date Patch New Champion Other
October 19
V6.21 Harrowing 2016 skins. Doom Bots game mode. VladimirSquare Vladimir splash art update. Kog'MawSquare Kog'Maw ultimate changes. Various balance changes.
October 5
V6.20 Star Guardians skins. NunuSquare Nunu's Consume Consume changes. Various balance changes.
September 21
V6.19 Zed ChampionshipCircle Championship Zed. Chroma packs. Splash art update. Kog'MawSquare Kog'Maw un-rework. Various balance changes.
September 8
V6.18 Cuisine skins. YorickSquare Yorick full relaunch. Riven ChampionshipCircle Championship Riven 2012 and 2016 versions. Various balance changes.
August 24
V6.17 Arcade 2016 skins. Chroma Packs phase 2. SionSquare Sion skins splash art update. Various balance changes.
August 10
V6.16 SKT T1 skins. Various balance changes.
July 26
V6.15 2016 PROJECT skins. Turret first blood. Lord Van Damm's Pillager item Lord Van Damm's Pillager reworked. Various balance changes.
July 13
V6.14 Pool party skins. RyzeSquare Ryze Gameplay and visual update. New game mode: Nexus Siege. Cloud DrakeSquare Cloud Drake buff. LeonaSquare Leona and SonaSquare Sona changes. Twisted Treeline item update. Various balance changes.
June 29
V6.13 New Hextech Crafting skin for VayneSquare Vayne. Global experience pacing changes. Changes to support champions and items. Various balance changes.
June 15
V6.12 Dark Star skins. ARAM update. Buff to AD Items. Various balance changes. Remake was introduced.
June 1
V6.11 Lucha skins. NidaleeSquare Nidalee Splash art rework. LucianSquare Lucian nerf. Trinity Force item Trinity Force's changes. Various balance changes.
May 18
V6.10 Super Galaxy skins. TristanaSquare Tristana splash art rework. Ocean DrakeSquare Ocean Drake buff change. Champion mastery 6 & 7. CassiopeiaSquare Cassiopeia buff. Barrier Barrier and Ghost Ghost buff. Various balance changes.
May 4
V6.9 Mid-season Mage update. Plague skins. Various splash art updates. Enchantment- Homeguard item Homeguard nerf. New five DragonSquare Dragons. Rift HeraldSquare Rift Herald changes. Crest of Insight buff Crest of Insight and Crest of Cinders buff Crest of Cinders changes. Boots enchants, Devourer item Devourer and Will of the Ancients item Will of the Ancients removed. Jungle items changes. New items: Bloodrazor item Bloodrazor, Lost Chapter item Lost Chapter, Hextech GLP-800 item Hextech GLP-800 and Hextech Protobelt-01 item Hextech Protobelt-01. Lots of items changes.
April 20
V6.8 TaricSquare Taric full relaunch. Global splash art update. Grasp of the Undying mastery 2016.png Grasp of the Undying nerf. Various balance changes.
April 6
V6.7 Robots skins and new Legendary skin: Sion MechaZeroCircle Mecha Zero Sion. Global splash art update. Warlord's Bloodlust mastery 2016.png Warlord's Bloodlust nerf. Various balance changes.
March 23
V6.6 April Fool's Day 2016. Mount Targon event. Game client and Riot store update. Various balance changes.
March 9
V6.5 Hextech Crafting and Annie HextechCircle Hextech Annie. Various balance changes.
February 24
V6.4 2016 Blood Moon skins. New Co-op vs AI bots. New Ferocity mastery: Expose Weakness mastery 2016.png Expose Weakness. Warlord's Bloodlust mastery 2016.png Warlord's Bloodlust rework. Various balance changes.
February 10
V6.3 2016 Valentine's Day skins. Xin ZhaoSquare Xin Zhao's Battle Cry Battle Cry critical strike effect. New item: Duskblade of Draktharr item Duskblade of Draktharr. Various balance changes.
January 28
V6.2 ShenSquare Shen update. 2016 Lunar Revel skins. Beast Hunter skins. eSports icons. Various balance changes.
January 14
V6.1 Start of Season Six. Team Builder 2.0. New jungle enchant: Magus item Runic Echoes replacing Magus item Runeglaive. Various balance changes.

Date Patch New Champion Other
December 9
V5.24 PoppySquare Poppy's Full Relaunch. Various post-preseason patch balance changes.
November 24
V5.23 Legendary Tristana DragonTrainerCircle Dragon Trainer Tristana skin. Game momentum changes, mass champion resizing and various post-preseason patch balance changes.
November 11
V5.22 Preseason 6 patch with Sivir VictoriousCircle Victorious Sivir skin as season reward. Rework to Marksmen and Mastery. Jungle balance with a new monster camp - the Rift HeraldSquare Rift Herald. Changes to Turret, Minion, Bounty and global gold income. Item overhaul regarding item efficiency, ability power items, jungle items, support items, vision items and consumable items with lots of new, reworked or removed items and champions' stats tweak. In-game settings are now saved server-side rather than on individual computers.