21.0.49.324 (Standard release of AutoCAD 2017).
is a legacy release of the standard design and drafting software. This version was part of a major shift in the Autodesk ecosystem toward a subscription-only model and introduced critical new features like native PDF importing. Core Technical Specifications AutoCAD 2017 21.0.49.324
Uses the AutoCAD 2013 DWG format (AC1027), which is shared with versions 2013 through 2017. System Requirements: AutoCAD 2017 21.0.49.324