Serial Lite IV FPGA IP designs must be manually upgraded to IP version 5.5.4 in the Quartus® Prime Pro Edition Software version 25.3 - Serial Lite IV FPGA IP designs must be manually upgraded to IP version 5.5.4 in the Quartus® Prime Pro Edition Software version 25.3 Description Due to a problem in the Quartus® Prime Pro Edition Software version 25.3, when opening a design that includes a Serial Lite IV FPGA IP version of 5.5.3 or earlier, you will not observe that Quartus automatically triggers the IP upgrade to the latest IP version 5.5.4. Resolution To work around the above problem, you should manually upgrade the Serial Lite FPGA IP to version 5.5.4. This problem is scheduled to be fixed in a future release of the Quartus Prime Pro Edition software. Custom Fields values: ['novalue'] Troubleshooting 15018374475 False ['Serial Lite IV IP'] ['FPGA Dev Tools Quartus® Prime Software Pro'] novalue 25.3 ['Agilex™ 7 FPGAs and SoCs', 'Stratix® 10 FPGAs and SoCs'] ['novalue'] ['novalue'] ['novalue']