Every place I ever worked at understood that if you x3 the codebase/infra/interaction surface/etc, you can expect x3 errors. If the total number of errors don't go up as you grow you're doing amazing, and if they go down even though you're landing more and more code for more and more features and subproducts, you have a genuine miracle.
These features can't be rolled out incrementally to users? In this day and age it seems weird for a web app to do a global go-live with something before testing it with a smaller group first.
