Standard libraries often lag behind the latest releases from manufacturers like Texas Instruments, Analog Devices, and Maxim Integrated.
For those moving from simulation to PCB layout in Ultiboard, a repack ensures that the schematic symbol is correctly mapped to a real-world physical footprint. multisim library repack
If you'd like to get started with a specific project, let me know: What are you currently using? g., Arduino, Power Electronics, RF)? Standard libraries often lag behind the latest releases