Dota 2's latest update introduces players to a new character, Skywrath Mage, and implements several gameplay and community fixes, according to a post from Valve.
Skywrath Mage is a radiant ranged intelligence hero and deals damage with abilities such as Arcane Bolt, Mystic Flare, Concussive Shot and Ancient Seal. The Dota 2 wiki page notes that while the Skywrath Mage is one of the game's most powerful heroes, he's also weaker to attacks.
Several bugs have been fixed with the update as well, including problems with the Timberchain traveling too fast or not latching, buff bugs and Fixed Tower attack speed. Reports have also been reduced to four per week and now allow single selection of behavior type. You can read the full update here.
Thanks for the tip, Andre.