Get Tom's Hardware's best news and in-depth reviews, straight to your inbox. You are now subscribed Your newsletter sign-up was successful This week, Apple’s Mac OS X hit a quarter-century milestone. It officially launched on March 24, 2001, though a public beta had been available for tinkerers for almost six months. Heralded by Steve Jobs as “the future of the Mac,” the fresh new operating system presented an ‘Aqua’ aesthetic dipped GUI over a Unix-based foundation. In 2026, even after three upheavals to the underlying Mac computer architecture, OS X is more popular than ever, and looks set to win flocks of new converts with the affordable MacBook Neo. Today marks 25 years since Apple launched Mac OS X. pic.twitter.com/OSrIdQqWHWMarch 24, 2026 You can’t just launch an OS on an established platform without some mitigations and workarounds. I remember at the time of OS X’s introduction, we had a very polished ‘classic’ Mac OS version 9, though it may have been slightly fragile.…