We introduced “SX” and black label designs with firmware version 4.100.  This included improved performance of crossfade mode, HSL color mode, and the flicker engine.  Perhaps most significantly, it introduced 19-bit dimming (previous firmware versions provided 16-bit).

We are about to release the next big firmware update, which includes many improvements to RC4 Commander and its integration with the various device types.  The current version and upcoming versions of Commander include extensive online help, which is the user manual in that case.