2015.2:
 * Version 5.1 (Rev. 7)
 * Internal device family change, no functional changes

2015.1:
 * Version 5.1 (Rev. 6)
 * Updated mmcm_pll_filter_lookup and mmcm_pll_lock_lookup functions in the header file for 7-Series and UltraScale devices
 * Supported devices and production status are now determined automatically, to simplify support for future devices

2014.4.1:
 * Version 5.1 (Rev. 5)
 * No changes

2014.4:
 * Version 5.1 (Rev. 5)
 * Internal device family change, no functional changes
 * updates related to the source selection based on board interface for zed board

2014.3:
 * Version 5.1 (Rev. 4)
 * Option added to enable dynamic phase and duty cycle for resource optimization in AXI4-Lite interface

2014.2:
 * Version 5.1 (Rev. 3)
 * Updated for AXI4-Lite interface locked status register address and bit mapping to align with the pg065

2014.1:
 * Version 5.1 (Rev. 2)
 * Updated to use inverted output CLKOUTB 0-3 of Clocking Primitive based on requested 180 phase w.r.t. previous clock
 * Internal device family name change, no functional changes

2013.4:
 * Version 5.1 (Rev. 1)
 * Added support for Ultrascale devices
 * Updated Board Flow GUI to select the clock interfaces
 * Fixed issue with Stub file parameter error for BUFR output driver

2013.3:
 * Version 5.1
 * Added AXI4-Lite interface to dynamically reconfigure MMCM/PLL
 * Improved safe clock logic to remove glitches on clock outputs for odd multiples of input clock frequencies
 * Fixed precision issues between displayed and actual frequencies
 * Added tool tips to GUI
 * Added Jitter and Phase error values to IP properties
 * Added support for Cadence IES and Synopsys VCS simulators
 * Reduced warnings in synthesis and simulation
 * Enhanced support for IP Integrator

2013.2:
 * Version 5.0 (Rev. 1)
 * Fixed issue with clock constraints for multiple instances of clocking wizard
 * Updated Life-Cycle status of devices

2013.1:
 * Version 5.0
 * Lower case ports for Verilog
 * Added Safe Clock Startup and Clock Sequencing

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