Dota 2 Dark Rift Update

The new Dark Rift update is now available for Dota 2, adding new content to Valve's MOBA. This includes the new Underlord character along with a new post-game summary with detailed reports on how you and your team performed during matches. This page has all the details. Here's the intro:
Conjure waves of abyssal flame to immolate enemies held paralyzed in your spiteful grip. Feast upon the carnage of battle, gaining strength as foes perish around you, their attacks diminished by your very presence. Tear a rift in reality to teleport yourself and your teammates across the map, delivering bloody retribution to any who would defy the will of Vrogros the Underlord.