If you have an active subscription or an educational license, follow these steps to retrieve older versions like 2021: : Log into your Autodesk Account.
: If 2021 is not in the primary dropdown (which usually covers 3 years back), use the Autodesk Assistant (bottom-right corner) and type "Can you help me get a download for AutoCAD LT 2021". autodesk-autocad-2021-lt-full-version-download
: Better sync for recent blocks to cloud storage for access across desktop and web. If you have an active subscription or an