SketchUp Version 6, released in January 2007 , marked a pivotal moment in the software's history as it was the first major version launched after
Because Version 6 is abandonware (no longer supported or sold commercially), you can find it on:
Interestingly, version 6 is often used by modern users to "clean" files. Saving a model back to SketchUp version 6 or below is a known method to strip dynamic component attributes while keeping the physical geometry intact.
Throwback to SketchUp Version 6: A Game-Changing Release
SketchUp Version 6 is the "Led Zeppelin IV" of architectural software. It took the raw potential of the early versions, polished the rough edges, and delivered a suite of tools (Sandbox, Styles, Ruby) that became industry standards.