This answer record contains the Release Notes and Known Issues for the 7 Series FPGAs Transceiver Wizard v3.1 released with the Vivado 2013.4 design tool.
Known Issues and Release Notes:
1) GTZ Wizard
For the known issues and work-arounds with the GTZ Wizard in Vivado Design Suite 2013.4, please refer to (Xilinx Answer 59305).
2) GTRXRESET sequence bypassed by default in GTH and GTP.
Issue: The GTRXRESET sequence module is bypassed by default.
Work-around: Change EXAMPLE_SIMULATION to 0 from 1 in all the modules.
3) EXAMPLE_SIMULATION not passed to gtwizard_0_tx_startup_fsm.v.
Please refer to (Xilinx Answer 59184).
4) TX Buffer Bypass does not complete successfully in auto mode.
Please refer to (Xilinx Answer 59150).