Yes update emails are also going out to existing Wardrobe Wizard 2 customers. They take a while to process because, (a) there are a lot of them and (b) if I send too fast they just bounce back. I expect they will have all gone out by this evening. If you purchased via Content Paradise you can simply download the file again.

The primary reason for the update was to make it much easier for folks to do the V4, V41 and Apolloy analysis.