The request
“Maestrooo told us there's a new version of the theme. Can you bring ours up to date and do whatever's necessary to get it running properly?”
The retailer had customizations on the old version and didn't know what would survive the update.
The approach
We updated the theme on a duplicate, carried the retailer's customizations forward, and tested every page template before publishing. Anything the new version handled natively replaced the old custom approach.
What we shipped
Theme updated to the latest Maestrooo release
Customizations carried forward
Every template tested before publish
Old theme kept as rollback