Are there any issues in doing this please?
We haven't changed any config, it was literally a straight upgrade but of course some clients will have upgraded/updated their host checker and Network Connect etc.
If there is no config changemade on the IC I don't think there will be a problem in roll back, I have tested 6.5 Network connect client connecting to SA with 7.2 - No issue observed in my lab however I would recommend you to test this
in your lab before doing this on production setup .
There would be no issue in a rollback, host checker would have upgraded as the option Auto-upgrade Host Checker is checked by default, multiple versions of network connect can exist on the client so the older version of NC should still exist on client PC