DecTek,   We generally aren't in the loop for why certain updates are numbered as they are, but generally when you see it there is either something included or removed from the previous version, or a convergence.  As far as the update itself, it is the next update for your iDrac, so there shouldn't be an issue with updating to it.   Let me know if this helps.  
I have a few Dell PowerEdge servers and have been wordering about Dell numbering the firmware releases. I have updated my iDRAC9 from version 6.10.30.20 to 6.10.80.00. Now I see a release in product support pages for iDRAC update to 7.00.00.00. It doesn't specify (iDRAC"9") but does show it applies to R7525. Would I update to this version or do I wait for a version specifically indicated for iDRAC9? Regards, DecTec
How does Dell number their firmware releases?