3.2.86 (Sept 2017) added
C-MAP functionality..
**from the Axiom Update page**
C-MAP integration
Essentials & 4DMAX/4DMAX+, Raster & Vector charts
Easy Routing (Autoroute to Here)*
*requires C-MAP 4DMAX/4DMAX+ card
LightHouse 3 Software Update for Axiom and Axiom Pro | Raymarine - A Brand by FLIR
There have been 10 additional releases since that one, none of those have C-MAP updates noted, but if you are still running on 3.1 or older, it would probably make sense to update to the latest version anyway.