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2025.4.1 Update

The Revit LT 2025 updates are cumulative and include all changes from previously released Revit LT 2025 updates.

Release Date: April 15, 2025

After this update is applied successfully, the build number specified on the Help > About dialog will be:

  • 25.4.10.45
  • 20250331_1515(x64)
  • 2025.4.1
Software embedded in the update executable:
Core Package - Component for Revit LT 2025 - version 25.4.10.45
Core Package - ATF for Revit LT 2025 - version 25.4.10.45
Core Package - Cloud for Revit LT 2025 - version 25.4.10.45
Core Package - CefSharp for Revit LT 2025 - version 25.4.10.45
Core Package - RVT Component for Revit LT 2025 - version 25.4.10.45
Core Content for Revit LT 2025 - version 25.4.10.45
Cloud Models for Revit LT 2025 - version 25.4.10.45
Unit Schemas for Revit LT 2025 - version 25.4.10.45
Product Feedback for Revit LT 2025 - version 25.4.10.45
Personal Accelerator for Revit LT 2025 - version 24.4.21.0
Important Notes
The Revit LT 2025.4.1 Update does not support uninstall. Once Revit LT 2025.4.1 Update is applied Revit LT 2025 cannot be reverted to its pre-update state.

Issues Resolved

General
Addressed potential PDF Vulnerabilities in Certain Autodesk Desktop Products. More details.
Addressed potential DWG Vulnerability in Autodesk Revit. More details.
Addressed potential JPG Vulnerability in Certain Autodesk Desktop Products. More details.
Align
Added key tips for ribbon controls of Align.
Background Processes
Improved stability when there are many element data changes in the main process that are related to the active background calculation.
Improved the stability of background calculations when multiple calculation results return to the main process.
Color Fill
Fixed an issue where non-masking solid filled regions with a transparency override set did not vector print or export when no model elements where behind them in the view.
Data Exchanges
Improved the ability to import data exchanges into Revit when the data exchange contains an unknown schema.
Export PDF
Fixed the issue that rotated 3D views showing empty when exporting PDF background.
Family
Fixed an issue where depth panel could cause other ribbon panels to shift around.
Improved stability when editing and assigning wall sweep profiles.
IFC
Improved reloading of IFC links when the category mapping is changed after the original link operation.
Improved stability of references to geometry when linking IFC files.
Link Topography
Fixed an issue with undo unload of link topography.
Materials
Fixed an issue where opening the Material Browser might be slow when accessing network textures.
Project Browser
Improved stability when renaming sheets from the project browser.
Room/Area/Space
Fixed an issue for room tags when moving them to room center.
Tags
Fixed an issue when moving room tags.
Upgrade
Improved stability for Revit upgrade for models that contain line-based families.
User Interface
Fixed the incorrect status for point cloud links in the Manage Links dialog for Revit LT.
Improved the stability when working with user.config file to store and retrieve dialog size data.

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