Set up migration from AC15 to AC17

[JGoode]

How do I set up a migration from ac15 to 17? It's not the same as 19 so I have no idea how to do it.
Any help would be appreciated.

[Barry Kelly]

There is a pretty comprehensive guide in the reference manual.

I think the biggest issue will be the new Building Materials.
They will be created automatically so there should be no real problem there.
The issue you will have with them is if you want to copy and paste from other files - the attribute index numbers may not match so you will find elements swapping building materials.

But on the whole you should be able to just open the file and swap the library (consolidate or load the migration libraries as well).

Barry.