How do I update to the latest edition of Sonlight?

Go to the curriculum package you purchased previously and click on the Items tab.

Select "Show Previously Purchased Items" and add any titles you do not already own.

Then add the Instructor's Guide(s) which qualify for a 50% Repurchase Discount and checkout.

If you have an older Core from a friend, you will not qualify for the IG discount, but you can order the items you need individually to complete your program.