The questions of others re the differences in version numbers, ie, 3.10.03 vs. 3.10.04 has not to my knowledge been answered as yet.

Scott, is there a difference in the two versions other than the number?

Would it perhaps relate to when the firmware was downloaded from the Outlaw site (ie how recently), or, as others have stated, to the serial number of the particluar 900 being updated, or to some other factor(s)?

ADDENDUM: Just spoke with Steve at tech, and he was able (as usual!) to clarify the issue. The last two digits have nothing to do with the firmware, but rather, reflect the build date of the particular 990 being updated.