Today, Apple announced on its website that the official release date of macOS High Sierra will be September 25th.
As detailed at WWDC in June, macOS High Sierra features the introduction of several significant new and updated under-the-hood technologies including APFS, macOS’s new file system, Metal 2, which harnesses the power of your Mac’s GPU, and HEVC video compression. High Sierra also adds new features and refinements to existing apps like Mail, Photos, Notes, Safari, Siri, and more.
Apple hasn’t announced a Golden Master seed of macOS High Sierra yet, but it should be released to developers soon. The GM seed gives developers a chance to finalize their macOS apps and submit them to the Mac App Store for approval before High Sierra is released publicly.
You can also follow all of our Apple event coverage through our September 12 hub, or subscribe to the dedicated September 12 RSS feed.
Unlock More with Club MacStories
Founded in 2015, Club MacStories has delivered exclusive content every week for over six years.
In that time, members have enjoyed nearly 400 weekly and monthly newsletters packed with more of your favorite MacStories writing as well as Club-only podcasts, eBooks, discounts on apps, icons, and services. Join today, and you’ll get everything new that we publish every week, plus access to our entire archive of back issues and downloadable perks.
The Club expanded in 2021 with Club MacStories+ and Club Premier. Club MacStories+ members enjoy even more exclusive stories, a vibrant Discord community, a rotating roster of app discounts, and more. And, with Club Premier, you get everything we offer at every Club level plus an extended, ad-free version of our podcast AppStories that is delivered early each week in high-bitrate audio.
Choose the Club plan that’s right for you:
- Club MacStories: Weekly and monthly newsletters via email and the web that are brimming with app collections, tips, automation workflows, longform writing, a Club-only podcast, periodic giveaways, and more;
- Club MacStories+: Everything that Club MacStories offers, plus exclusive content like Federico’s Automation Academy and John’s Macintosh Desktop Experience, a powerful web app for searching and exploring over 6 years of content and creating custom RSS feeds of Club content, an active Discord community, and a rotating collection of discounts, and more;
- Club Premier: Everything in from our other plans and AppStories+, an extended version of our flagship podcast that’s delivered early, ad-free, and in high-bitrate audio.