Learn what IFC releases are compatible to import with the IFC 4.3 Extension for Civil 3D.
| IFC Release | Notes |
|---|---|
| IFC 2.3 | Coordination based data is partially supported. |
| IFC 4 | Reference view geometry is supported. |
| IFC 4.1 | Deprecated release. |
| IFC 4.2 | Release not ratified.
Alignments are not currently imported. |
| IFC 4.3 | Alignment based reference linear placement is partially supported.
Alignments are not currently imported in IFC 4.3 RC1. In IFC 4.3 RC3 and later versions, alignment definitions are incompatible with earlier IFC versions. |
| IFC 4.4 |