Vasha,
We have tested PM with macOS Sonoma (last beta) and we addressed an issue that only affected the Photo Mechanic Plus version. We posted a new set of builds yesterday (see the Announcements board) and anyone that wants to upgrade to macOS Sonoma should use that version.
That said, we do not recommend that anyone who depends on their computer to function properly to use a brand-new OS. We recommend waiting for at least a few updates to the OS before moving over.
The choice is yours however and we'll do what we can to support the latest macOS releases.
-Kirk
