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December 15, 2015 at 10:11 #2040
Backward migration script should be written in the “new” library. This migration process starts, when you save a plan to ARCHICAD n-1 version. Then AC iterates on all placed libpart instances and runs the backward migration scripts and changes the data stored in the project file.
It can’t be done with a simple library change, as it is done in the forward migration.
Team Leader, Library Team