A first beta version of QCAD 3.1 is now available in the customer download area, and as free trial version.
For a detailed change log, please refer to:
I've also uploaded packages with the new CAM add-on for QCAD 3:
Mac OS X:
The CAM add-on for QCAD 3 adds a very flexible G-Code export tool to QCAD with path optimization and various cutting options.
More about this will be posted to the main web site soon.