You DART version should be fine.  The doc you looking for: [URL]  Please mark my answer as correct/helpful if it helps.
Hello,  I need to replicate a few file systems from a CX4 (NS480) to a new VNX5400. Is this possible? Can someone provide a support matrix document, I'm having trouble finding one. Celerra versions below.  Thanks.  FLARE 30 DART 6.0.70-4  
Celerra IP Replicator from NS480 to new VNX5400