The compiler release that is happening today has not been vetted for stability, performance, etc beyond the regular - it&#x27;s as &#x27;production-ready&#x27; as any other of the monthly releases.<p>However, the language definition has been frozen, and Perl6 programs you write after today are supposed to keep working.<p>Basically, it&#x27;s a promise by the developers to stop breaking stuff willy-nilly.