Dota 2 Update [519.8 MB] - The Winter Battle Pass

Official Changelog

Added Conduct Summary popup, which tells you how many reports, abandons, and commends you have received in the past 25 games. http://www.dota2.com/conductsummaryfaq/
Restored the notification when action was taken against a player whom you recently reported.
Added support for Live Rewind while spectating.
Improved CPU usage on low end machines
Improved rendering performance (heroes, shadows, particles, water)
Improved lighting integration of weather effects for visual clarity and quality
Improved rendering of low and high quality water
Default global items such as couriers are now visible within the armory so you can control their shuffle state from there.
Improved the ability to control shuffle state from the context menu of items in the armory
Bundles are now inspectable. The owned item details page will show you all items in the bundle and allow you to unbundle it.
Announcer, Mega-kill, Music, and Voice items now preview their sounds in the loadout, owned item details, and store item details screens.
Updated textures for Clockwerk's Power Cogs
Added new Enchant Remnant animation for Earth Spirit
Added a sound when blink dagger distance is within the threshold between the max distance and the clamped distance
Updated Iron Talon sound
Fixed Brood Webs ambient sound
50% chance between short and long version of Skywrath's ITB line
Players competing in the Dota 2 Majors will now be required to use their registered name when competing in a tournament
Fixed Illusory Orb doing no damage to Spirit Bear
Fixed effigies appearing incorrectly in the portrait window in-game
Fixed a bug and corrected textures to address prismatic gems not tinting Terrorblade or his Demon Form to the correct color.
Fixed a bug where Terrorblade's Metamorphosis would sometimes leave Terrorblade's Demon in a running-in-place animation
Fixed a glitch that occurred in the cast animation of Terrorblade's Metamorphosis
Fixed a bug where some of Terrorblade's Demon Form particles were not being affected by prismatic gems when seen in the portrait window
Fixed a bug where taunt animations looked bad when the hero became stunned or flailing
Fixed Exalted Quality issue with Tempest Helm of the Thundergod Bundle and Tempest Helm item
Fixed missing material on El Gato courier
Fixed custom portrait for Timbersaw's Steam Chopper Top Hat
Fixed broken idle rares for Captain Bamboo courier and Spirit of Anger bear
Fixed model distortion in Children of Verdicia treant
Fixed missing geometry on Armlet of Mordiggian
Fixed Aegis winners display for 2014 splitting onto two lines.
Chat: if you ignore someone, then their messages will immediately be hidden. If you unignore them, then the messages will reappear.
Emoticons now preview in tooltips, and the store and owned item details pages. They also preview in the confirmation dialog that appears when you unlock a set of emoticons.
Emoticons can be unlocked from the owned item details page.
Workshop tools: Added support for previewing items using the currently equipped terrain
Workshop tools: Fixed crash when placing too many trees in a map
Custom Games: Fixed a memory leak with modifier_lua and CheckState().

Russian Voiceover:

Added Gyrocopter, Luna, and Necrophos.
Reworked Silencer and Wraith King VO, and made volume adjustments to Sven.

The Battle Pass

Winter 2016 Treasure I

Omen's Embrace: Vengeful Spirit |
Shards of Malice: Wraith King |
Raikage Warrior: Storm Spirit |
Battle Dress of the Proven: Centaur Warrunner |
Vigilance of the Manticore: Skywrath Mage |
Devourling | Rare
Instantly Gain 15 Battle Levels | Extremely Rare
Golden Devourling | Throw Your Money

Winter 2016 Treasure II

Splendor of the Protean Emperor: Morphling |
The Frostborne Wayfarer: Drow Ranger |
Mechanised Pilgrim: Clockwerk |
Forgotten Tactician: Dark Seer |
Harness of the Fissured Soul: Elder Titan |
The Andestian Sentinel: Slardar | Rare
Instantly Gain 15 Battle Levels | Extremely Rare
Fantoccini's Dilemma: Rubick | Throw Your Money

Winter 2016 Treasure III

This treasure chest is not released yet.

Winter 2016 Treasure IV

This treasure chest is not released yet.

New Sets

The Serakund Tyrant: Lich | Support Path Reward |
Regime of the Enthaleen Dragon: Lina | Solo Path Reward |
Legacy of the Eldwurm Crest: Dragon Knight | Carry Path Reward |

New Taunts

Taunt: Bananadancer
Taunt: Funk of the Dead

New Couriers

Axolotl | Related Items: Axolotl Upgrade Black, Axolotl Upgrade Red, Axolotl Upgrade Green

New Effigies

Heroic Effigy of Winter 2016
Heroic Effigy of Winter 2016 Level II
Heroic Effigy of Winter 2016 Level 3

New Wards

Ward of the Phoenix |

New Loading Screens

Winter 2016 Loading Screen I
Winter 2016 Loading Screen II
Winter 2016 Loading Screen III

New Teleport Effects

Winter Season Teleport effect 2016

New Terrains

Winter Terrain

The Spin Wheel Options

Items of different rarities.
Set
Arcana
Infuser
Treasure Chest
Courier
Effigy

New Trophies

Winter 2016 Battle Pass Level
Winter 2016 Battle Predictor
Winter 2016 Battle Questline
Winter 2016 Battle Achievements

Winter 2016 Emoticon Pack

Lifestealer - :snowman:
Heal - :healed:
Drunk - :drunk:
Winter 2016 Trophy - :trophy_2016:

Other New Items

Recycling: 10 Items for a Winter 2016 Charm
Winter Season Compendium 2016 Effects
Treasure Upgrade Infuser - Winter 2016

Economy Updates

Terrain Updates

Desert Terrain Roshan got a material update.

New Brands

Lin "June" Shiyang

Others

Updates to the currency exchange rates.
A new rarity type has been added: Seasonal - Currently set to "Battle Pass Access"

Item Drop List Updates

Winter 2016 Level Recycle Items

Winter Major Treasure 1
Winter Major Treasure 2

Winter Compendium Arcana Loot List

Blades of Voth Domosh
Demon Eater
Fiery Soul of the Slayer
Fractal Horns of Inner Abysm
Frost Avalanche Bundle
Manifold Paradox Bundle
Swine of the Sunken Galley Bundle

Winter Compendium Courier Loot List

Captain Bamboo
Yonex's Rage
Shagbark
Nimble Ben
Kupu the Metamorpher
The Llama Llama
Itsy
Mok
Blotto and Stick
Tinkbot
Alphid of Lecaciida
Waldi the Faithful
Arnabus the Fairy Rabbit
Deathripper
Coco the Courageous
Tory the Sky Guardian
Throe
Cluckles the Brave
Butch
Ramnaught of Underwool
Procine Princess Penelope
Prismatic Drake

Winter Compendium Effigies Loot List

Effigy Block of Frost
Effigy Block of Jade
Effigy Block of Triumph

*Winter Compendium Infusers Loot List

Treasure Upgrade Infuser - Winter 2016

Winter Compendium Sets Loot List

Fuck loads. Full list here: link

UI Updates

Watch Tab

You can now tick "Friends Only" on the Watch tab to show the games your friends are in.

Others

Internal support for date abbreviations such as "nd" for 2 and "th" for 9 and etc.
Panorama supporting strings have been added to more stuff on the in-game UI.
A typo for the Montreal chat channel has been fixed. Used to read Montraal.
Experience Trophy now shows a progress bar.

String Updates

Tooltip Updates

Two new tooltip modifiers for Vengeful Spirit: Scepter Illusion Damage Dealt & Scepter Illusion Damage Taken
Minor typos and corrections to a couple of other abilities.

UI related

A "Thank You" title header has been added for the message that pops up when you get confirmation of action taken for you reports.
A new warning message pops up telling you of the consequences if you decline a match.
A new warning message has been added for when a member of your party fails to accept a match.

Others