All releases with the same version number have the same feature set across all supported platforms. There will be some visual differences due the the different windowing systems used. Please let us know if you notice a behavioral difference.
The release notes for the most recent beta and official versions are continuously being updated. You may view the latest version of these release notes on the Internet at http://www.cgl.ucsf.edu/chimera/docs/relnotes.html.
Please select the release notes for the version of chimera you are running (or decide if you want to upgrade by checking out those for newer versions). You can always tell which version you are running by choosing the Version Info item in the Chimera Help menu.
Version.Build Status Release Date 1.2304 production 16 Oct 2006 1.2199 production 17 Feb 2006 1.2184 production 31 Oct 2005 1.2181 production 20 Oct 2005 1.2180 production 12 Oct 2005 1.2065 production 17 Dec 2004 1.2038 production 19 Oct 2004 1.2029 snapshot 7 Oct 2004 1.1951 production 13 May 2004 1.1872 production 27 Oct 2003 1.1700 production 27 Mar 2003 1.1602 beta 6 Nov 2002 1.1516 beta 3 Jul 2002 1.1442 beta 10 Apr 2002 1.1430 beta 10 Mar 2002 1.1389 alpha 17 Jan 2002 1.1351 alpha 1 Nov 2001 1.1298 alpha 10 Sep 2001 1.1182 alpha 20 Jun 2001 1.1050 alpha 23 Feb 2001 1.1001 alpha 1 Feb 2001 1.938 alpha 14 Nov 2000 1.634 alpha 7 Aug 2000 1.388 alpha 27 Jun 2000 1.154 alpha 3 Mar 2000