The best Macs recently received a free upgrade to macOS Sequoia, but what about all the unsupported Macs out there? While Apple is generally heralded for its solid software support, Mac hardware can quickly become obsolete when it stops receiving modern OS upgrades. Apps quickly become no longer supported, websites may fail to load properly on older versions of Safari, and more issues could pop up over time. That’s why the average user often starts to look at buying a new Mac when their current one slows down and stops receiving newer macOS versions.