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There have been lots of questions in this thread about when 64-bit support for the Mac version of ArchiCAD will be available and why it is lagging behind compared to the Windows version.

ArchiCAD is a “Carbon” application – as the majority of the Macintosh applications with 8+ years history. We already started the work of making ArchiCAD 64-bit compliant in “Carbon” when Apple had a sudden decision in 2007 to drop the 64 support in “Carbon” and provide it just in their “Cocoa” framework.

As we consider 64-bit a strategic feature we started to rewrite the Mac specific parts of ArchiCAD from scratch for “Cocoa” to provide this functionality to our Macintosh users at the earliest possible timeframe. We are working on it with significant resources, but it is an extremely huge development effort that spans over multiple versions.

The first result will come in the next major release (ArchiCAD 14) where the BIM Server that is designed to host and serve numerous large projects will be 64-bit compliant on the Mac as well. Fortunately according to our best knowledge the vast majority of our Mac users do not stretch the current 4 Gb memory limit yet.

I would like to emphasize that GRAPHISOFT has always been in the forefront implementing the latest Apple technologies (e.g. most recently the Mac-Intel transition). We always do what it takes to serve our Mac users equally well and our 100% commitment to the Mac is stronger than ever.

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Laszlo Vertesi

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VP, Product Development

GRAPHISOFT