macOS High Sierra 10.13.4 Displays Warnings When Opening 32-Bit Apps as Part of Apple's Phase Out Plan
Starting with macOS High Sierra 10.13.4, Apple is commencing with its plan to begin phasing out 32-bit apps on Macs. Apple has promised that macOS High Sierra will be the "last macOS release to support 32-bit apps without compromises."
After installing macOS High Sierra 10.13.4, which is now available in a beta testing capacity, when you open up an app that's a 32-bit app, you'll get a warning about its future incompatibility with the macOS operating system.
This is the first of many warnings Apple plans to provide as it works to put an end to 32-bit Mac apps, and this initial warning will only be shown one time for each app.
Apple's efforts to phase out 32-bit apps on Macs mirror the path it took when ending 32-bit app support on iOS devices. In iOS 10, Apple provided increasingly more insistent warnings to let users know that their apps wouldn't work with future versions of iOS before phasing out 32-bit support entirely in iOS 11.
As of January 2018, all new apps submitted to the Mac App Store must be 64-bit, and all apps and app updates submitted must be 64-bit by June of 2018. The next version of macOS after High Sierra will include "aggressive" warnings about 32-bit apps before they are phased out entirely.
Once 32-bit apps are phased out on Macs, they won't be able to be used at all, so users will need to find replacements for older 32-bit apps that aren't likely to be updated to 64-bit.
Popular Stories
Bloomberg's Mark Gurman expects Apple to release new AirPods Pro this year, and he said the earbuds will have a key new feature: heart rate monitoring.
From his Power On newsletter today, with emphasis added:As for Apple's other devices, there's a lot in the fall pipeline — though many of the new products are only incremental upgrades.
There will be Apple Watch updates, faster Vision...
Apple's iPhone 17 Pro and iPhone 17 Pro Max should be unveiled in a few more weeks, and there are plenty of rumors about the devices.
In his Power On newsletter today, Bloomberg's Mark Gurman corroborated a rumor that iPhone 17 Pro models will be "available in an orange color."
Below, we recap key changes rumored for the iPhone 17 Pro models:
Aluminum frame: iPhone 17 Pro models are...
Apple will offer the upcoming iPhone 17 Pro and iPhone 17 Pro Max in a new orange color, according to Bloomberg's Mark Gurman.
Gurman made the claim in the latest edition of his Power On newsletter, adding that the new iPhone 17 Air – replacing the iPhone 16 Plus – will come in a new light blue color.
We've heard multiple rumors about a new iPhone 17 Pro color being a shade of orange. The ...
Apple has "considered" releasing a bumper case for the upcoming iPhone 17 Air, according to Bloomberg's Mark Gurman.
Similar to the bumper case that Apple introduced for the iPhone 4 in 2010, Gurman said the iPhone 17 Air version of the case would cover the edges of the device, but not the back of it. Those bumper cases were made of rubber.
Given that the iPhone 17 Air is expected to have ...
Apple will hold its annual iPhone-centric event on Tuesday, September 9 at the Apple Park campus in Cupertino, California, according to an announcement that went out today. The event will start at 10:00 a.m., with select members of the media invited to attend.
At the September 2025 iPhone event, Apple will unveil the iPhone 17 lineup, which includes an all-new ultra-thin iPhone 17 Air. It...
We're only weeks away from Apple's annual iPhone event – rumored to take place on September 9 – and along with the new iPhone 17 series, we're going to get a new version of the Apple Watch Ultra for the first time since 2023.
By the time the Ultra 3 is unveiled, it will have been two years since the previous model arrived. The intervening period has left plenty of room for enhancements,...
Apple hasn't updated the AirPods Pro since 2022 other than a shift from Lightning to USB-C, and the earbuds are due for a refresh. According to Bloomberg's Mark Gurman, Apple will launch AirPods Pro 3 later this year, and apart from new features like heart rate monitoring, we're also expecting a few design changes.
The fourth‑generation AirPods offer useful clues to Apple's design cues for ...
Apple today announced its "Awe Dropping" iPhone-centric event, which is set to take place on Tuesday, September 9 at 10:00 a.m. Pacific Time. There are a long list of products that are coming, but we thought we'd pull out five feature highlights to look forward to.
That Super Thin iPhone - Apple's September 9 event will see the unveiling of the first redesigned iPhone we've had in years, ...
