If using 10GBASE-KR, users should updated to Vivado 2013.3 or later for production release of the IP.
10GBASE-KR will not be updated to production status in the ISE design tools, and support has been removed ISE Design Suite 14.7. The 10GBASE-KR GUI selection is available in Vivado Design Suite 2013.3 for GTH Transceivers. If use is needed on the GTX transceiver, please contact your Xilinx FAE or local sales office for support.
If using the 10GBASE-R option, this version of the core has gone production in the ISE 14.7 and Vivado 2013.3 tools for 7 series devices with both GTX and GTH transceivers.