We've made a release candidate (version 1.2303) available for download.  It has many new features relative to the previous production release (1.2199).  The features/improvements are listed here:

http://www.cgl.ucsf.edu/chimera/docs/relnotes/1.2303.html

Please let us know if you encounter any problems with the release candidate.  If no major problems surface in the next few days, we will promote the candidate to production release status.

Enjoy!

                        Eric Pettersen

                        UCSF Computer Graphics Lab

                        pett@cgl.ucsf.edu

                        http://www.cgl.ucsf.edu