The PURGE command received a significant UI upgrade.
Working with external references (Xrefs) is a staple in collaborative CAD work. In the past, if a consultant updated an Xref, you had to open that file separately to see what changed. AutoCAD 2021
remains a pivotal release in the history of Autodesk’s flagship CAD software. While newer versions (2024, 2025) have since been released, AutoCAD 2021 is widely regarded as the “mature pandemic-era” update—stable, feature-rich, and still used by thousands of firms that have not yet migrated to subscription-only models. The PURGE command received a significant UI upgrade