What's New in Dynamo for Revit 4.2.1

Dynamo for Revit 4.2.1 is automatically installed in Revit as an internal add-in.

Updating Revit does not affect the previous Dynamo versions installed in the previous Revit release. Dynamo for Revit 4.2.1 includes the following highlights. For a full list of release notes, see Release Notes. You can find more information about major feature updates on the Dynamo blog: Core 4.2.

Highlights

• Enabled Autodesk Assistant in Dynamo, a chat-based assistant that can read and directly modify nodes on the canvas.
• Introduced DynamoMCP, a Model Context Protocol server that lets external AI clients drive Dynamo programmatically. DynamoMCP is available in Dynamo for Revit as a built-in package.
  • If you are using Autodesk Assistant within Revit, you can enable Dynamo commands in Assistant by opening Dynamo.
• Added three new workspace templates that include pre-built elements:
  • Create a graph
  • Import and export workflow
  • Make a custom node – The Curve_Validate custom node from this template is also available in the Add-ons library.
• Added an option to create a new workspace from a template. In the top navigation menu, go to File New From Template…
• Protected templates from being accidentally overwritten by a save. The templates folder is read-only; to make changes to a template, save it to a different location.
• Added keyboard shortcuts to toggle the library and extensions sidebars: Ctrl+Shift+Left for library, and Ctrl+Shift+Right for extensions.
• Improved NoNetworkMode by extending enforcement to WebView2-based surfaces. Learn more about NoNetworkMode in this documentation.