Released September 2009. This was the first specialized version for piping, equipment, and structural design. 2. Can You Still Download AutoCAD 2009?
Autodesk Announces New AutoCAD Plant 3D 2010 Software AutoCAD Plant 3D 2009 Download
Autodesk typically only provides downloads and support for the current version plus three years back . Released September 2009
For those needing plant design capabilities today, the modern (available as part of the AutoCAD including Specialized Toolsets subscription) offers significant improvements: AutoCAD Plant 3D 2009 Download
Better handling of large project databases (SQL Server support).
If you are looking for a download for this specific era, you are likely either looking for the base or the first official release of the plant toolset, AutoCAD Plant 3D 2010 . 1. Understanding Version History: 2009 vs. 2010