MA Lighting has announced the release of version 2.4.1 [6.6], just a few short weeks after announcing the release of 2.4.0 at PLASA. Looking over the change log, it looks like a bunch of bugs were fixed. No new software functions were added to this release.
There is an important notice for grandMA2 consoles out, more from MA Lighting:
We are sorry to inform you that due to an issue with the initial BIOS, we ask grandMA2 owners of the following consoles to get in touch with their distributor or MA directly.
If you are in the states, contact A.C.T. Lighting for more information if your desk falls into those serial numbers. You can visit MA Lighting’s support page to download version 2.4.1 [6.6] for your desk.