5 - More SCSI bug fixes (some timing issues resolved in the FPGA image)
6 - Firmware update support using scsi2sd-util6.
12 - Improved SD card compatibility
13 - Fixed SCSI interfaces on slower SCSI controllers
14 - Significant performance improvements
15 - Added SD card hotswap support.
18 - First BETA firmware for the 6.0 hardware version of the SCSI2SD.