BIOS version remains the same after firmware update.
ISG # firmware view
BL Version: 1.08
BMC Version: 1.28
FPGA Version: 1.22
BIOS Version: 0.22
NVRAM Version: 8.00
ISG # firmware update
***************************** ATTENTION ***************************
IF YOU CHOOSE TO CONTINUE, FIRMWARE UPGRADE WILL START AFTER REBOOT
THE UPGRADE PROCESS MAY TAKE UP TO ONE HOUR TO COMPLETE
THE PROGRESS IS SHOWN ON THE SERIAL CONSOLE AND THE FRONT PANEL
!!!!!!!!! DO NOT INTERRUPT UNTIL THE UPGRADE IS COMPLETE !!!!!!!!!!
*******************************************************************
Continue? [no,yes] yes
Update Firmware ... Please standby
After update:
ISG # firmware view
BL Version: 1.08
BMC Version: 1.28
FPGA Version: 1.22
BIOS Version: 0.22
NVRAM Version: 8.00
At the time of writing there's no way to upgrade firmware. Once new firmware upgrade process is finalized, relevant documentation will be published.