#1 - Dec. 15, 2011, 7:25 p.m.
In the next beta patch (coming soon), we'll be making some changes to the way we store character data. These changes won't be visible to players, but we'll need to wipe all characters in the Diablo III beta in order to fully implement them. As with previous characters wipes, this wipe will also affect gold, achievements, followers, and artisans.
We're currently looking to release beta patch 8 before the weekend -- potentially as soon as this evening -- but we don't have a precise ETA. We apologize for the short notice and thank you for your continued testing and feedback.