MacOS Tahoe
MacOS Tahoe beta was released June 9, 2025 and seems to work with BigBusiness 15.
Tahoe is the last version of macOS to work on Intel Macs, using chips like the i5 or i7. BigBusiness 15 is native for Apple Silicon, their new chips such as M1, M2, M3, M4.
Earlier versions of Big Business are no longer updated and are not supported on Tahoe.
Tahoe Time
Testing macOS Tahoe on an M2 MacBook Air resulted in an odd Date & Time setting.
This was fixed by forcing a sync in Terminal by typing, sudo sntp -sS time.apple.com.
Univeral Control
Universal Control lets you move from iMac to MacBook when they are side-by-side.
Universal Control is turned On in MacOS Tahoe and this is a mind-bending experience. Drag from Sequoia (left) to Tahoe (right) and double-click (same mouse) to open there.
Tahoe Client
On macOS Tahoe 26 Developer Beta, BigBusiness Client can crash and needs upgrade.
This situation may resolve itself with newer Betas of macOS Tahoe so fingers crossed.