The Evolving, Improving Dining Scene Restaurants change. Some restaurants say they don't. That their recipes are exactly the same as they were twenty or fifty years ago. That they do everything the way they've always done it. It's not true.
Recipes do change.
At the very least, the ingredients change. Even such stable-seeming items like black pepper are not the same today as they were a year or two ago. And such essentials as seafood and produce change on a daily basis. Indeed, recipes ought to change, to adapt to those variations in ingredients. Every recipe ought to be tasted every day.