The RapidIO MegaCore function v11.0 provides final support for Cyclone IV GX devices. However, when your RapidIO MegaCore function targets a Cyclone IV GX device, a warning message indicates support is only preliminary. This warning message is erroneous.
This issue has no design impact. You can ignore this warning message.
This issue has no workaround.
This issue is fixed in version 11.0 SP1 of the RapidIO MegaCore function.