(Canadian

I'm staying on Quicken 2013 Premier for Windows.
macOS version Pct of users Cumulative Pct Catalina (10.15) 58% 58% Mojave (10.14) 16% 74% High Sierra (10.13) 13% 87% Sierra (10.12) 5% 92% El Capitan (10.11) 4% 96% Yosemite (10.10) 2% 98% Mavericks (10.9) 1% 99% Snow Leopard and older 1% 100%Since Quicken Mac currently only runs on El Capitan and above, there are probably fewer than 10% Of Quicken Mac users still using El Capitan and Sierra. And you can continue to use your current Quicken Mac if you wish to stay on your current computer, but you won't be able to get future upgrades and at some point won't be able to do online transactions.