IFC Specifications Database
Official releases of the IFC specification are listed here, as well as their components including HTML, EXPRESS, XSD/XML, and OWL documentation and formats.
Release Notes and Errata for all versions can be found here.
| Version | Name (HTML Documentation) | ISO publication | Published (yyyy-mm) | Current Status | HTML download (ZIP) | EXPRESS | XSD | pSet XSD | OWL HTML | RDF | TTL |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 4.2.0.0 | IFC4.2 | - | 2019-04 | Candidate Standard | ZIP | EXP | IFC4x2.xsd | - | |||
| 4.1.0.0 | IFC4.1 | - | 2018-06 | Official | ZIP | EXP | IFC4x1.xsd | - | ifcOWL IFC4.1 | RDF | TTL |
| 4.0.2.1 | IFC4 ADD2 TC1 | ISO 16739-1:2018 | 2017-10 | Official | ZIP | EXP | IFC4.xsd | - | ifcOWL IFC4 ADD2 TC1 | RDF | TTL |
| 4.0.2.0 | IFC4 ADD2 | - | 2016-07 | Official | ZIP | EXP | IFC4_ADD2.xsd | - | ifcOWL IFC4 ADD2 | RDF | TTL |
| 4.0.1.0 | IFC4 ADD1 | - | 2015-06 | Retired | ZIP | EXP | IFC4_ADD1.xsd | - | ifcOWL IFC4 ADD1 | RDF | TTL |
| 4.0.0.0 | IFC4 | ISO 16739:2013 | 2013-02 | Retired | ZIP | EXP | ifcXML4.xsd | PSD_IFC4.xsd | ifcOWL IFC4 | RDF | TTL |
| 2.3.0.1 | IFC2x3 TC1 | ISO/PAS 16739:2005 | 2007-07 | Official | ZIP | EXP | IFC2X3.xsd | PSD_R2x3.xsl | ifcOWL IFC2x3 TC1 | RDF | TTL |
| 2.3.0.0 | IFC2x3 | - | 2005-12 | Retired | ZIP | EXP | - | - | ifcOWL IFC2x3 | RDF | TTL |
| 2.2.1.0 | IFC2x2 ADD1 | - | 2004-07 | Retired | ZIP | EXP | - | - | - | - | - |
| 2.2.0.0 | IFC2x2 | - | 2003-05 | Retired | ZIP | EXP | - | - | - | - | - |
| 2.1.1.0 | IFC2x ADD1 | - | 2001-10 | Retired | ZIP | EXP | - | - | - | - | - |
| 2.1.0.0 | IFC2x | - | 2000-10 | Retired | ZIP | EXP | - | - | - | - | - |
| 2.0.0.0 | IFC2.0 | - | 1999-10 | Retired | - | - | - | - | - | - | - |
| 1.1.1.0 | IFC1.5 ADD1 | - | 1998-08 | Retired | - | - | - | - | - | - | - |
| 1.1.0.0 | IFC1.5 | - | 1998-01 | Retired | - | - | - | - | - | - | - |
| 1.0.0.0 | IFC1.0 | - | 1996-12 | Retired | - | - | - | - | - | - | - |
The table IFC Release Database was last modified at 2019-08-06 15:04:19 by Jeffrey Ouellette.
Version Notation
IFC versions are identified using the notation "Major.Minor.Addendum.Corrigendum".
Major versions consist of scope expansions or deletions and may have changes that break compatibility.
Minor versions consist of feature extensions, where compatibility is guaranteed for the "core" schema, but not for other definitions.
Addendums consist of improvements to existing features, where the schema may change but upward compatibility is guaranteed.
Corrigendums consist of improvements to documentation, where the schema does not change though deprecation is possible.
Which version do I use?
The latest version, IFC 4.1 is recommended for all current developments, which is fully backward compatible with IFC 4.0. Core definitions within IFC 4.1 and 4.0 are backward compatible with IFC 2x3 TC1.
