A much needed change. With Requirements, libraries that you include in your projects can sandbox their monkeypatches to only affect their classes. Likewise, if

A much needed change. With Requirements, libraries that you include in your projects can sandbox their monkeypatches to only affect their classes. Likewise, if the purpose of a library is to monkeypatch a standard class, you can selectively include that monkeypatch only where needed in order to isolate any potential side effects.