steam screenshot
Steam recently announced that it will stop supporting macOS versions 10.7 ("Lion"), 10.8 ("Mountain Lion"), 10.9 ("Mavericks") and 10.10 ("Yosemite") on January 1, 2019.

Starting on January 1 2019, Steam will officially stop supporting macOS versions 10.7 ("Lion"), 10.8 ("Mountain Lion"), 10.9 ("Mavericks") and 10.10 ("Yosemite"). This means that after that date the Steam Client will no longer run on those versions of macOS. In order to continue running Steam and any games or other products purchased through Steam, users will need to update to a more recent version of macOS.

The newest features in Steam rely on an embedded version of Google Chrome, which no longer functions on older versions of macOS. In addition, future versions of Steam will require macOS feature and security updates only present in macOS 10.11 ("El Capitan") and above.

Mac OS 10.10 "Yosemite" was released in 2014 and was replaced by 10.11 "El Capitan" in September 2015. That puts the operating system at a little over three years old. However, there still seem to be a number of users either unable or unwilling to upgrade. We recently reported that several users of Yosemite had run into an iTunes upgrade bug that prevented Safari from launching. A thread was recently posted on Steam's community forums complaining about the move as users would lose access to their game libraries if they don't upgrade.

Top Rated Comments

purged Avatar
91 months ago
Absolutely.
Score: 14 Votes (Like | Disagree)
2499723 Avatar
91 months ago
This is the kind of reckoning we shouldn’t be terribly surprised by, but it is disappointing nonetheless. I’ve often asked the question: ‘What would happen to my Steam games if Valve were to suddenly go under?’. Steam games require Steam to be running in order to launch. ‘Offline mode’ is finicky and if I remember correctly, must first be set when you’re...online. This kind of defeats the purpose in many respects. In any case, there is a big question mark hanging over the status of our games if Valve were to shut down. This was rarely true of physical copies before they were locked down to online stores (the physical edition of Fallout 4 is hilariously a single DVD that essentially just provides a Steam code so you can download the game).

In any case, now we have a new and somewhat unexpected issue: ‘What happens if Steam won’t run on my previously supported hardware - hardware that still runs the games I intend to play on it?’. If I boot a Windows 95 machine and have the right hardware to play the Win95 version of ‘Tie Fighter’, it will run. As a collector of old Macs, I can expect a copy of ‘Prince of Persia’ to run as well on a Macintosh LC running System 7.1 today as it did when it was released in the early 1990s.

Steam - and other digital game stores like it (GOG being the only possible exception I’m aware of) turn this whole relationship with our digital past upside down. In 20 years, will I be able to play ‘Factorio’ on my vintage laptop if I happen to have purchased the Steam version? It looks highly doubtful, and that’s terribly sad for those of us who find comfort and joy in returning to old software OR for the larger number of us whose backlog is so long that they’ll be dead before they make even the slightest dent.
Score: 11 Votes (Like | Disagree)
wubsylol Avatar
91 months ago
Steam isn’t even 64-bit yet. Seems strange they wouldn’t support newer OSs before dropping older ones.


Attachment Image
Score: 9 Votes (Like | Disagree)
keysofanxiety Avatar
91 months ago
Meanwhile, if i wanted, i could still play my windows 95 CD-ROM games on a VM running win95 without issue. Another caveat of DRM i guess.
You say that, but have you actually tried playing a Win 95 game on a W95 VM? Because in my experience it doesn’t work at all. Graphics driver issues won’t even load the game. I used Parallels.

I had better luck loading 95 games on an XP VM, but even that was roulette whether or not it would work. I just ended up using Crossover.

I spent a lot of time trying to get legacy games working via VMs and I didn’t have any luck whatsoever — no exceptions, beyond BOWEP (Ski Free/Tetris) — on a 95 VM. Which games did you manage to play?
Score: 8 Votes (Like | Disagree)
DanielEAndersson Avatar
91 months ago
I’m pumped up for when they drop macOS for good next year, when 90% of my library doesn’t run because the hundreds of games I own are all 32-bit! Thanks for taking away my fun Apple, you know what’s best for me! I didn’t need Steam Link either!
If you want backward compability, stick to windows. Windows ain't bad these days.
Score: 7 Votes (Like | Disagree)
keysofanxiety Avatar
91 months ago
Steam isn’t even 64-bit yet. Seems strange they wouldn’t support newer OSs before dropping older ones.
Score: 7 Votes (Like | Disagree)

Popular Stories

iOS 26

15 New Things Your iPhone Can Do in iOS 26.2

Friday December 5, 2025 9:40 am PST by
Apple is about to release iOS 26.2, the second major point update for iPhones since iOS 26 was rolled out in September, and there are at least 15 notable changes and improvements worth checking out. We've rounded them up below. Apple is expected to roll out iOS 26.2 to compatible devices sometime between December 8 and December 16. When the update drops, you can check Apple's servers for the ...
Intel Inside iPhone Feature

Apple's Return to Intel Rumored to Extend to iPhone

Friday December 5, 2025 10:08 am PST by
Intel is expected to begin supplying some Mac and iPad chips in a few years, and the latest rumor claims the partnership might extend to the iPhone. In a research note with investment firm GF Securities this week, obtained by MacRumors, analyst Jeff Pu said he and his colleagues "now expect" Intel to reach a supply deal with Apple for at least some non-pro iPhone chips starting in 2028....
iPhone 14 Pro Dynamic Island

iPhone 18 Pro Leak Adds New Evidence for Under-Display Face ID

Monday December 8, 2025 4:54 am PST by
Apple is actively testing under-screen Face ID for next year's iPhone 18 Pro models using a special "spliced micro-transparent glass" window built into the display, claims a Chinese leaker. According to "Smart Pikachu," a Weibo account that has previously shared accurate supply-chain details on Chinese Android hardware, Apple is testing the special glass as a way to let the TrueDepth...
iOS 26

Apple Seeds Second iOS 26.2 Release Candidate to Developers and Public Beta Testers

Monday December 8, 2025 10:18 am PST by
Apple today seeded the second release candidate version of iOS 26.2 to developers and public beta testers, with the software coming one week after Apple seeded the first RC. The release candidate represents the final version iOS 26.2 that will be provided to the public if no further bugs are found. Registered developers and public beta testers can download the betas from the Settings app on...
iPhone 17 Pro Cosmic Orange

10 Reasons to Wait for Next Year's iPhone 18 Pro

Monday December 1, 2025 2:40 am PST by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...
Johny Srouji

Apple's Chipmaking Chief Johny Srouji Responds to Report About Him Potentially Leaving

Monday December 8, 2025 9:23 am PST by
Apple's chipmaking chief Johny Srouji has reportedly indicated that he plans to continue working for the company for the foreseeable future. "I love my team, and I love my job at Apple, and I don't plan on leaving anytime soon," said Srouji, in a memo obtained by Bloomberg's Mark Gurman. Here is Srouji's full memo, as shared by Bloomberg:I know you've been reading all kind of rumors and...
Johny Srouji

Apple Chip Chief Johny Srouji Could Be Next to Go as Exodus Continues

Sunday December 7, 2025 10:41 am PST by
Apple's senior vice president of hardware technologies Johny Srouji could be the next leading executive to leave the company amid an alarming exodus of leading employees, Bloomberg's Mark Gurman reports. Srouji apparently recently told CEO Tim Cook that he is "seriously considering leaving" in the near future. He intends to join another company if he departs. Srouji leads Apple's chip design ...
google pixel 10

Switching Between iPhone and Android Will Get Easier With New Apple and Google Collaboration

Monday December 8, 2025 11:10 am PST by
Apple and Google are teaming up to make it easier for users to switch between iPhone and Android smartphones, according to 9to5Google. There is a new Android Canary build available today that simplifies data transfer between two smartphones, and Apple is going to implement the functionality in an upcoming iOS 26 beta. Apple already has a Move to iOS app for transferring data from an Android...
Apple Fitness Plus expansion hero

Apple Fitness+ Coming to 28 New Regions With Digital Voice Dubbing

Monday December 8, 2025 6:19 am PST by
Apple today announced that Fitness+ is expanding to 28 new markets on December 15 in the service's largest international rollout since launch, accompanied by new language dubbing and a K-Pop music genre. Apple Fitness+ will become available in Chile, Hong Kong, India, the Netherlands, Singapore, Taiwan, and additional regions on December 15, with Japan scheduled to follow early next year....
maxresdefault

iPhone Fold: Launch, Pricing, and What to Expect From Apple's Foldable

Monday December 1, 2025 3:00 am PST by
Apple is expected to launch a new foldable iPhone next year, based on multiple rumors and credible sources. The long-awaited device has been rumored for years now, but signs increasingly suggest that 2026 could indeed be the year that Apple releases its first foldable device. Subscribe to the MacRumors YouTube channel for more videos. Below, we've collated an updated set of key details that ...