The "Upd" in this context usually refers to significant release updates like or 16.6 , which introduced substantial performance and feature enhancements:
Capture allows for the creation of EDIF or VHDL netlists, which are essential for moving a design into a simulator or PCB layout tool. OrCAD Capture "Update Cache" not working? - PCB Design orcad 16 capture portable upd
While the portable version is flexible, the underlying software requires specific hardware to function efficiently: The "Upd" in this context usually refers to
Runs directly from an executable (typically Capture.exe found in the \tools\capture folder). orcad 16 capture portable upd