Diablo III's site, Senior Producer Alex Mayberry tweeted that patch 2.0.1 will be going live today. The major feature of this patch, also known as Paragon 2.0, is that it adds more end-game character advancement and replayability with the updated Paragon leveling system. The changes include removing the level cap for earning Paragon experience, making Paragon levels account-wide, and allowing players the freedom to allocate Paragon Points however they want within the category (defense, offense, core, or utility) that each specific level's point is awarded. Catch more details about Paragon 2.0 on the official site.
[Thanks to Wesley for the tip!]