He offers Sierra 10.10.5 and does not need to update yet to 10.11 or more-because he can be a photographer and wants to create sure all his applications are compatible with brand-new OS upgrade first. He provides a display screen save of his product when he bought it-says compatible with Macintosh OS Xv10.10 (Yosemite and macOS Sierra.
I have a client who bought QB for Mac 2016 a several months ago and can be only setting up it right now.
