The RichFaces team has released RichFaces 4.0.0 M1. You can read about this release from Jay Balunas.

A few other things:

• To start quickly with RichFaces 4, download this template and replace original RichFaces Jar files with 4.0.0M1 version.
• We are doing a webinar on RichFaces 4 and JSF 2 on September 8th, 2010. Details to follow.
• To find all RichFaces how-to posts on my blog, click here (richfaces-howto tag).