Hello, Since your project is just a single example, we still can't make such a bold claim that `\Attribute` is used a lot.
While "attribute" is a fairly generic word, just about everyone uses namespaced classes and therefore it's not a huge problem. Moreover, PHP 8 is a major release so BC in such cases isn't the first priority. Also, it's important to mention that the introduction of functions such as `str_contains()` is also a breaking change for some. But the benefits it provides outweigh the 0.1% who may get BC issues. Best regards, Benas Seliuginas