Improved susceptibility to power fluctuation during OS download. If the power fluctuated at the start of an OS download this may cause the serial number to be reset. This window of vulnerability decreased from approx 1sec to approx 0.03sec.
Implemented new bootloader (v2).
Changed OS version number to include bootloader version number as follows: :x.yy-aa" where x = major version number, yy = minor version number and aa = bootloader version.