Some example files have a note to update the schema version, but this seems to be no longer necessary. For example https://github.com/buildingSMART/IFC/blob/fedaf6da480e86ee725693dd88a4c87e89fd5826/Examples/Basic%20geometric%20shape/Examples/Extruded%20solid/File.ifc#L18-L19
Some example files have a note to update the schema version, but this seems to be no longer necessary. For example
IFC/Examples/Basic geometric shape/Examples/Extruded solid/File.ifc
Lines 18 to 19 in fedaf6d