For nearly four decades, has been the undisputed king of computer-aided design (CAD). While the software undergoes annual updates, some releases stand out as significant milestones. Autodesk AutoCAD 2021 is one such release. Launched in March 2020, this version arrived at a pivotal moment when remote work and cloud collaboration became critical. Rather than simply adding superficial features, AutoCAD 2021 focused on deep workflow integration, performance enhancements, and bridging the gap between desktop power and mobile flexibility.

Building on the "Quick Measure" tool introduced in previous versions, AutoCAD 2021 added the ability to calculate perimeter and area measurements simultaneously. By simply hovering the cursor within a closed boundary, the tool instantly calculates the internal area and perimeter, accelerating estimation and space planning tasks. 2. Included Specialized Industry Toolsets

Verdict

: The PURGE command now tells you exactly why certain items cannot be deleted, such as nested blocks.

If you are already on 2021: There is no urgent need to upgrade unless you require AI-based tools or must stay compliant with the latest file formats (DWG 2025 format is not backwards compatible with 2021).