ALTERA DOES NOT WARRANT THAT THE FUNCTIONS CONTAINED IN THIS PATCH WILL MEET YOUR REQUIREMENTS, OR THAT THE OPERATION OF THIS PATCH WILL BE UNINTERRUPTED OR ERROR-FREE. //**************************************************************** quartusii-13.0-0.21-readme.txt Readme file for Quartus II 13.0 Patch 0.21 Copyright (C) Altera Corporation 2013 All right reserved. Patch created on June 06 2013 Patch Case#: 128564 //**************************************************************** Problem: Timing Violations Causing Low Fmax on CycloneV. Solution: Add a reset synchronizer for the negative edge clock register. Caution - You must either have previously installed the Quartus II 13.0 software or must install the Quartus II 13.0 software before installing this patch. Otherwise, the patch will not be installed correctly and the Quartus II software will not run properly.