IFC4 Add1 Release | Open BIM

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.

Final version IFC4 Add1 released in July 2015 as buildingSMART Final Standard. Baseline for IFC4 Reference View V1.0 and IFC4 Design Transfer View V1.0

• 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:

• all official buildingSMART Model View Definitions for IFC4 are published at this site, currently:
  • the IFC4 Reference View
  • the IFC4 Design Transfer View
• implementation specific guidelines and information are listed here

source: buildingSMART | international home of openBIM