More tricky, I think that the procedure is from 7 to 9 (updates the AC file and Plotmaker) and then from 9 to 11.
The info for 9 to 11 is;
Under the Help Menu select
Getting Started with ArchiCAD 11
read
page 21
Migrating ArchiCAD 9 Projects to ArchiCAD 11
Eduardo Rolón AIA NCARB
AC27 US/INT -> AC08Macbook Pro M1 Max 64GB ram, OS X 10.XX latest
another Moderator