Sun Sep 10, 2017 10:19 am
Upgrading RouterOS is done under System --> Packages. Like Windows, or OS X on your PC / Mac.
The firmware you are looking at under System --> RouterBoard is equivalent to the BIOS on your PC. That doesn't get updated so often.
After you update RouterOS under System --> Packages and reboot, it may or may not have a new RouterBoard firmware which you can then update under System --> RouterBoard and reboot again.