For developers, the Revit API SDK 2025 includes a compiled HTML help file ( RevitAPI.chm ) that provides the patched documentation for changes related to the .NET 8 upgrade . How to Apply These Patches

: Sign in to your Autodesk Account and navigate to the Products and Services page to find the latest updates.

. Note that some large updates, such as the 2.4GB Revit 2025.4 patch, may exceed standard WSUS limits and require distribution through Custom Apps for enterprise IT management. Revit Support - Autodesk