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Unlike Windows, Apple never ships separate 32- and 64-bit versions of Mac OS X.

October 2007: Mac OS X 10.5 Leopard launches with actual support for regular 64-bit apps Universal Binaries can run on 32-bit and 64-bit Intel and PowerPC machines, covering four architectures within a single app.

August 2006: Apple launches the Intel Mac Pro with a 64-bit Woodcrest CPU mainstream 64-bit Core 2 Duo Macs follow shortly afterward.

June 2005: Apple announces that it will begin using Intel processors, which are still primarily 32-bit.

April 2005: Mac OS X 10.4 Tiger allows for 64-bit processes under-the-hood-they can be spun off from another process or run via the Terminal.

June 2003: The PowerPC G5 CPU is the first 64-bit-capable chip to show up in a Mac, and with Mac OS X 10.3 Panther can theoretically address up to 8GB of RAM.

It’s nicely situated between the nitty-grittiness of the specific WWDC sessions and the bird’s-eye overview you get in the general keynote, and it’s always full of interesting tidbits.īuried in that presentation this year was news about the next phase of the macOS transition from 32-bit to 64-bit, a process that has been much longer and messier for the Mac than it was for iOS. Mac Studio (2022), Mac Pro (2019 and later), MacBook Air (2018 and later), MacBook Pro (2017 and later), Mac mini (2018 and later), iMac (2017 and later), MacBook (2017), and iMac Pro (2017)Īpple TV 4K, Apple TV 4K (2nd generation), and Apple TV HDAfter the main blockbuster WWDC keynote, Apple does a big “ Platforms State of the Union” presentation aimed more specifically at the gathered audience of developers.

IPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) IPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation), iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation) Windows 10 and later via the Microsoft StoreĪpple TV 4K, Apple TV 4K (2nd generation and later), and Apple TV HD IPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation), iPad Air 2, iPad mini (4th generation), and iPod touch (7th generation)

IPhone 5s, iPhone 6, iPhone 6 Plus, iPad Air, iPad mini 2, iPad mini 3, and iPod touch (6th generation) IPhone 8 and later, iPad Pro (all models), iPad Air 3rd generation and later, iPad 5th generation and later, and iPad mini 5th generation and later This update has no published CVE entries.