21.0.49.324 (Standard release of AutoCAD 2017).

1360x768 (1600x1050+ recommended) with True Color capabilities. Key Features and Enhancements Introducing AutoCAD 2017 - Autodesk

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