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According to Autodesk’s official release notes (REF: RN-22031), the 2020.2.9 Hotfix addresses three critical categories: Stability, Specific Geometry Corruption, and Security.
| Scenario | Recommendation | | :--- | :--- | | You are still actively using Revit 2020 for production | YES. The DLL security risk alone justifies the 5-minute installation. | | You only use Revit 2020 to open old archive models, not to edit | Unlikely. If you are only viewing read-only models offline, the hotfix offers minimal benefit. | | Your firm uses a custom plugin that hasn't been updated since 2021 | Test first. Install on a sandbox machine. The 2.9 update may break your workflow. | | You have already upgraded to Revit 2023, 2024, or 2025 | No. Uninstall Revit 2020 entirely to save disk space. Do not maintain a broken 2020 install. | revit 2020.2.9 hotfix
To deploy Revit 2020.2.9 across a fleet of 10+ machines: | | You only use Revit 2020 to
If you are a solo user, install the hotfix immediately. It provides essential security patches without changing the file format, so you won't disrupt your workflow. Install on a sandbox machine