Professional 7.1.0: Cadsoft Eagle

For physical PCB design, the Layout Editor supported board sizes up to 4m x 4m (approximately 150 x 150 inches) and up to 16 signal layers . It featured advanced routing tools like differential pair routing and meander commands for length compensation in high-speed designs.

: Version 7.1.0 offered cross-platform support for Windows, Mac, and Linux, a feature that helped it gain a massive user base among hobbyists and professionals alike. Major Features in the Professional Edition CadSoft Eagle Professional 7.1.0

Flexible grid options in both millimeters and inches. For physical PCB design, the Layout Editor supported