1. Overview MicroStation V8i SELECT Series 3 (SS3) is a major iterative release of Bentley Systems’ flagship computer-aided design (CAD) software platform. Positioned within the V8i product generation, SS3 represents a mature, stable, and highly optimized version focused on infrastructure design, documentation, and project collaboration. Unlike subscription-only models that followed, V8i SS3 offered perpetual licensing and remains a benchmark for reliability in many engineering firms.