Still in support for agents?

(newbie question) Just need to clarify the support position.

Currently have the CMS at 7.2.0 and majority of agents at 6.3 (some lower level on older boxes tho).

Tracked down the support matrix;

http://h18006.www1.hp.com/products/servers/management/hpsim/supportmatrix.html

This lists the 6.3 versions as out of support as of '03/31/2013'

Does this mean that my 6.3 agents are out of support?

Or, as the CMS is 7.2, then they are support (providing they can communicate of course).

Thanks, Thomas