We have made a beta release of CellProfiler 2.1 (available at firstname.lastname@example.org.
We recommend that you continue to use the official release for essential work. This beta version is undergoing final testing and modifications before its official release within a month or two.
Also, you might be interested in the CellProfiler Annual Support and Training Plan, an option we will soon offer that provides direct access to the CellProfiler team. For more information, email us at email@example.com.