If your project allows for it, or if you are unable to secure a license, you may consider alternative methods to handle legacy CPLDs:
: Lattice discontinued free yearly licenses around 2020. The software now requires a purchased subscription or a serial number from a physical software kit to generate a valid license.dat file. isplever classic free license
Including 4000V, 4000B, 4000C, and 4000Z. ispMACH 4000G/ZE: Low-power CPLD architectures. If your project allows for it, or if
: Most users now need to purchase or renew a license through the Lattice Online Store or a sales representative to use the software for CPLD and legacy device design. If your project allows for it