Dwg 3.0 -
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Traditional DWG uses LZW compression (like a ZIP file). DWG 3.0 uses semantic compression . Instead of storing "LINE from 0,0 to 10,0" 5,000 times, it stores a single instruction: "Repeat object #455 across vector X."
A: Historially, Autodesk supports a format for ~3 years after a new one drops. Expect mainstream support for legacy DWG to end in 2029. dwg 3.0
A: No, the core specification is managed by the Open Design Alliance (ODA). Autodesk has added proprietary extensions for Revit interoperability, but the base format is open.
Have you migrated to DWG 3.0 yet? Share your experience in the comments below. Instead of storing "LINE from 0,0 to 10,0"
A: Indirectly, yes. The columnar storage of B-rep data makes extracting individual faces or edges 5x faster, but the geometry kernel is unchanged from ACIS 2025.
The launch of DWG 3.0 is staggered. Here is the current status as of late 2025: Instead of storing "LINE from 0
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