ISR G2 (2911 & 3925) ROMMON / IOS compatibility?

[tuanquangnguyen]

Hi community,

Are there any documented listing/table of ROMMON / IOS compatibility for Cisco ISR 2911 and 3925?

I am about to upgrade from 15.1 to 15.7.3M7, which is the recommended MD. However, the current version of ROMMON is 15.0(1r)M13.

[Leo Laohoo]

ISR G1/G2 were easy to upgrade. 

There was never the need to determine if ROMMON had to be upgraded or not.  There was never the need to do a intermediate upgrade. 

You can upgrade without the need to look at the ROMMON.