Hey Patrick, dont think i am on anything specific. here is the "show version" from my X670.
* X670G2-48x-4q.35 # show versionSwitch : 800546-00-08 [serial removed] Rev 8.0 BootROM: 1.0.2.1 IMG: 21.1.2.14
PSU-1 : Internal PSU-1 800462-00-07 1604W-80105
PSU-2 : Internal PSU-2
Image : ExtremeXOS version 21.1.2.14 by release-manager
on Fri Aug 26 12:49:31 EDT 2016
BootROM : 1.0.2.1
Diagnostics : 5.4
* X670G2-48x-4q.36 #