We know that iOS 11 marks the end of the road for legacy 32-bit apps and now we’re learning about Apple’s new 64-bit requirement for Mac apps.

In an advisory on Dev Center yesterday, the Cupertino giant announced that macOS High Sierra will be the last macOS release to support 32-bit apps “without compromise.”

Apple originally said at the Worldwide Developers Conference that macOS apps submitted to Mac App Store must support 64-bit computing starting January 2018. The new advisory states that Mac app updates and existing apps must support 64-bit starting June 2018.

“If you distribute your apps outside Mac App Store, we highly recommend distributing 64-bit binaries to make sure your users can continue to run your apps on future versions of macOS,” reads Apple’s note to developers.

In a separate notice, the company reminded developers to submit updates to their 32-bit apps because iOS 11 is 64-bit only. ”Support for 32-bit apps is not available in iOS 11 and all 32-bit apps previously installed on a user’s device will not launch,” reads the note.

Two days ago, Apple asked developers to update their product pages for iOS 11’s redesigned App Store.

  • Denys Zhadanov

    Great product placement 🙂

  • This makes sense with iOS, but not with macOS. There are a LOT, and I mean a frickin’ lot of old Mac apps that have not been updated. Games as well.

    EDIT: By apps, I mean programs, 3rd party programs.

    • Actually this makes sense to do for a lot of reasons. For instance if you look at why Windows 10 requires more than double the storage even though it has significantly less features than MacOS out of the box it’s primarily because of all the hardware it has to support and everything required to make things backwards compatible.

      The more you have to support the slower, more complex and more bloated the OS becomes. Periodically trimming out support for older processors is a great way to keep things lightweight and fast for the most possible people. It’s exactly what happened back in Snow Leopard and personally I’m looking forward to it happening again 🙂

  • Aman kapoor

    This is where apple is wrong

    • How so? I’ve seen people talk about Snow Leopard as being one of the best releases of MacOS in recent history not because it had any big new features, but because it became smaller, faster and more stable by a noticeable about. How did they pull that off? They dropped support for older processors. Curious why it’s a bad idea this time around.

  • Jose Rivera

    Does this mean Apple will drop support for certain Mac models come next year when macOS 10.14 or 11? (If we even move past 10) I have a feeling that macOS 11 (or 10.14) will be like iOS 11. 64bit only.

  • So Young

    If Apple wants to shoot on their own feet by dropping support of many, many older programs and games and want more of their users to install and use windows way more frequently than macOS, this is exactly what to do.

    • It seems everyone around here has forgotten that Apple has always treated their desktop OS like this and it has survived just fine so far. Or does no one else remember all the processors that were no longer supported as of Snow Leopard?