Minor releases aren’t beta. By any convention they should be fully tested, final releases. And if gnu core utils broke systems in a minor release you better believe it would make it to some news.
The instability of choosing a beta software for the literal core of your operating system is kind of the point.
Ubuntu 25.10 entered beta on September 18th. It releases on October 9th. It’s still in beta.
I see what you meant. I consider rust core utils beta so stand by my statement but I see what you meant.