Revit 2025 moved the add-in platform from .NET Framework 4.8 to .NET 8, and Revit 2026 stays there. Many older plugins stopped loading. Here is how to tell what works, and how Parapet covers 2020 through 2027 with one installer and one key.
| Revit | Add-in runtime | What it means |
|---|---|---|
| 2027 · 2026 · 2025 | .NET 8 | Add-ins must be rebuilt for .NET 8; a 2024 DLL will not load. |
| 2024 · 2023 · 2022 · 2021 · 2020 | .NET Framework 4.8 | The classic platform; most legacy add-ins target this. |
A vendor that supports "2020-2027" therefore ships two builds. Parapet does: one installer detects the Revit versions on your PC and installs the right build for each.
%AppData%\Autodesk\Revit\Addins\2026\ for a .addin manifest. No file → nothing was installed for 2026.Bulk parameter editing + 108 one-click actions. Pro, 30-day trial.
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No. One Parapet key covers all supported versions.
Yes. The installer installs a .NET Framework build for 2022 and a .NET 8 build for 2026 and 2027; both show the same Parapet tab.
Yes - the same installer and the same key cover 2020 through 2027. See Revit 2027 add-ins.
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Download Parapet Install docsRelated guides, tutorials and comparisons.
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