Cadence: Orcad 15.7 !exclusive!

Before cloud-based collaboration and 3D step models became standard, OrCAD 15.7 represented a perfect balance. It was the first widely adopted version after Cadence's acquisition of OrCAD (from OrCAD Systems Corp) had fully matured. It offered:

Version 15.7, released around 2005-2006, was the culmination of that integration. By this point, Cadence had successfully: cadence orcad 15.7

Why do engineers cling to this version two decades later? Before cloud-based collaboration and 3D step models became