There have been as many new features and enhancements as bug fixes in the patches released to date. The 8.05.01 patch, for example, added new plotting options, a linetype and hatch pattern preview, and a configuration dialogue box. So far, the patches have been in the 2-3Mb size, so they download in a reasonable amount of time, and install in seconds. Product support from DataCAD LLC is for installation only, and is free for the first 30 days. In case you haven't heard of them before, OpenDWG's goal is to have AutoCAD's DWG file format open and accessible to all, instead of proprietary as it is now.
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