Microvellum AC Update Available Today: Build 26.1.0910.641
A new update is now available for download on the Microvellum Portal, exclusive to Microvellum AC (AutoCAD). This update resolves a compatibility issue that was causing Microvellum to crash upon startup when running AutoCAD version 2026.1.2.
This update is only available for Microvellum AC and only resolves this compatibility issue. This fix will also be included in Microvellum’s upcoming beta release slated for September 16, 2026.
This compatibility issue is related to a bug in earlier versions of Microsoft .NET Desktop Runtime 10. As such, in addition to updating your software, Microvellum also recommends updating to .NET Desktop Runtime 10.0.11 x64 or later. A pop-up message will appear alerting users to apply this update if an older version is detected upon starting up the program. Click "Yes" to download the .NET update.
How to Get the Update
Microvellum software updates are available to users with an active maintenance subscription. Users can download the latest update from the Microvellum Portal. To download the update, you must have download permissions enabled by the administrator of your company’s account. Log into the portal, open Software Management, navigate to the “Licenses” section, then select either “Latest Update” or “Latest Full Install” for your specific software.