Hotfix Updated — Revit 202029
A particularly nasty bug affected teams using Revit Server or BIM 360. When a user attempted to Relinquish All Mine before closing the model, Revit would throw error InternalException 3.4.5. This sometimes led to a corrupt local cache, forcing users to re-download the entire central model (wasting 30–45 minutes per incident). The Revit 202029 Hotfix corrects the database transaction handshake.
For a BIM manager, the notification of a "2020.2.9 Hotfix" triggers immediate anxiety. Unlike a major release, which is tested over months, a hotfix is an emergency response. The standard rule of IT in AEC (Architecture, Engineering, Construction) is to never install a .0 release. However, the rule regarding a .9 hotfix is equally strict: Isolate before deployment. revit 202029 hotfix updated
The danger is that while the hotfix resolves a rare crash related to mirrored stairs, it may break the API (Application Programming Interface) connections to crucial add-ins like PyRevit, Dynamo, or structural analysis tools. For a firm with 500 projects frozen in Revit 2020 to maintain client compatibility, applying a late-cycle hotfix is a cost-benefit analysis. If the crash affects 2% of users, the fix may be ignored. If it affects the printing system, deployment is mandatory within 48 hours. A particularly nasty bug affected teams using Revit
Do not treat this like a standard Windows update. Because Revit 2020 is older, the hotfix requires specific conditions to avoid failure. Installation Steps:
Prerequisites:
Installation Steps:
