What I just read on this subject, from CNET, is that the next OS after High Sierra will still run 32-bit apps, but Apple will call any to your attention. App developers are of course urged to make the change to 64-bit. Some of Apple’s own apps need upgrading.


BIAB 2026 Win Audiophile. Software: Fender Studio One 8, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Fender Quantom HD8 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.