This topic contains important information for Autodesk AutoCAD 2021 including Specialized Toolsets and Autodesk AutoCAD LT 2021.
The ZIP option of the DWGCONVERT, ETRANSMIT, and ARCHIVE commands now create UTF-8 ZIP files, which uses the popular 8-bit form of Unicode for file names. This means that you can package files that have names with extended font characters. The file names will not display correctly if you use ZIP utilities that don't support UTF-8 ZIP files. Use a ZIP utility such as 7-Zip to correctly display and extract these files.
Starting with AutoCAD 2017-based products, BMP files no longer support the color value of 192,192,192 as a transparent color. Custom images that need to support transparency must now be saved as a PNG file.
AutoCAD’s Data Extraction workflow will now automatically use Microsoft’s Access Database Engine by default when it’s available on your system. If the Access Database Engine is not available, the Jet Database Engine will be used as with previous releases.
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