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Summary of IFC Releases

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IFC Release Summary

Overview about IFC releases, including current IFC release, background information about previous IFC releases, and preview of future IFC releases.

Quick links for developers:

 

current IFC release
  • IFC4 Add1 - the first addendum of IFC4 incorporating necessary improvements that had been identified during the pilot implementations and the development activities for the first Model View Definitions.
  • IFC4 - (formerly IFC2x4) - has been released as the new IFC platform for the upcoming years in 2013. It incorporates several extensions of IFC in building, building service and structural areas, enhancements of geometry and other resource components, and numerous quality improvements, fully integrated simple ifcXML specification, and a new documentation format
    • final version IFC4 released in March 2013
    • see IFC4 Add1 for minor updates to be incorporated for official IFC4 Model View Definitions

 

IFC4 support information:

  • a new mailing list for all IFC4 related information and discussion has been set up
    • the ifc4 mailing list is hosted »here« (use this link to subscribe and maintain your account)
    • once subscribed, the list can be used to receive and make IFC4 related announcements
  • all official buildingSMART Model View Definitions for IFC4 are published at this site, currently:
  • implementation specific guidelines and information are listed »here«

 

upcoming IFC releases (in planning phase)
  • IFC5 - is currently in early planning phase, it is expected to include full support for various infrastructure domains and more parametric capabilities.
    • the first active project under buildingSMART International to expand IFC definition for the infrastructure domain is the IFC Alignment Project.

 

last IFC release
  • IFC2x3-TC1 - IFC2x Edition 3 Technical Corrigendum 1 - documentation and constraint only corrigendum to update of IFC2x3, published in July 2007
    • the IFC2x3 release and IFC2x3-TC1 update are equal in terms of the IFC exchange file and both are used for IFC2x3 implementation and certification
    • the IFC2x3 release and IFC2x3-TC1 are now strongly recommended for implementation

 

previous IFC releases
The previous releases of IFC2x3, 2x2 and 2x are still listed at the website, but they are no longer maintained.
  • IFC2x3 - IFC2x Edition 3 - third release of the IFC2x Platform, published in Feb 2006, mainly quality improvement of IFC2x2
  • IFC2x2-Add1 - IFC2x Edition 2 Addendum 1- small addendum of IFC2x to fix issues that came up during implementation, published in Jul 2004
    • this release has been used for IFC2x2 implementation and certification
  • IFC2x2 - IFC2x Edition 2 - second release of the IFC2x Platform, published in May 2003, several extensions of IFC in domain areas
  • IFC2x-Add1 - IFC2x Addendum 1 - small addendum of IFC2x to fix issues that came up during implementation, published in Oct 2001
    • this release has been used for IFC2x implementation and certification
  • IFC2x - IFC2x - first release of the IFC2x Platform, published in Oct 2000, focused on providing a stable platform

The older releases IFC2.0, IFC1.5.1, IFC1.5 and IFC1.0 are meanwhile outdated and not listed anymore.