IS 7.1.2 Integration with Serena PVCS

Has anyone managed to integrate IS 7.1.2 with Serena PVCS?

The latest we found on advantage was that PVCS was not going to be supported, even in 8.X.

https://advantage.webmethods.com/advantage?targChanId=kb_home&oid=1614330148

Any help sure appreciated.
C