Is cisco ios 15.4 compatible with 2921 router?

[rahul99rocks]

Hi, I am working on the analysis of Cisco IOS 15.4 and want to know does cisco ios 15.4 support 2921 router? If not, then which is the latest version of Cisco IOS which is compatible with 2921 router?

[Marvin Rhoads]

It's compatible, assuming you have the necessary 512 MB DRAM and 256 MB of flash.

You can always use the Cisco Feature Navigator to check this sort of question. Go here:

http://tools.cisco.com/ITDIT/CFN/jsp/index.jsp

...and then research software, check by platform.