The IFC for Revit addins that improve IFC import and export functionality are maintained at this GitHub site for versions newer than Revit 2018. In the past 2 weeks, updates have been release for all current Revit versions, and I have collected the direct links for you below. Note that the GitHub versions can be more up-to-date and current than the ones listed on the App Store.
- IFC for Revit 2021, latest release 21.2.1.0 here, direct download link here
- IFC for Revit 2020, latest release 20.3.2.0 here, direct download link here
- IFC for Revit 2019, latest release 19.5.0.0 here, direct download link here
If you want to check which version you currently have, you could use Start – Add or Remove Programs to do that without opening Revit:
If you are inside a Revit model, you can use File – Export – IFC and check the version in the dialog box header:
If you are looking for Revit 2018 and older versions of the IFC for Revit addins, check…