But how will you see the difference?
When you open the 21 file in 23, they will all be converted to the newer 23 version.
You may be able to download Archicad 21 from MyArchicad (especially if you have downloaded it from there before - otherwise it may only go back to 22).
If not let me know the language version you want (INT, USA, etc.) and I should be able to find a link to download 21.
Barry.
One of the forum moderators.
Versions 6.5 to 27
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