The new patch is live in the Windows edition of Overwatch, updating Blizzard's multiplayer shooter and adding Ana, a support sniper who is the game's newest character. The new version also brings other promised changes, including a new restriction for competitive mode that only allows one of each character on each team. There are also changes to make overtimes to go faster and a bunch of hero balance tweaks, including buffs for D.Va and Zenyatta. This post has the complete patch notes.