• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
TechChange the World

Why Apple iOS 11 Won’t Run Some of Your Apps

By
Don Reisinger
Don Reisinger
Down Arrow Button Icon
By
Don Reisinger
Don Reisinger
Down Arrow Button Icon
September 19, 2017, 9:40 AM ET

After users download iOS 11 to their iPhones and iPads starting today, they might discover some of their apps no longer work.

Apple’s iOS 11 will not support slow and old apps that use a technology called 32-bit, rendering those programs useless. Additionally, Apple will not allow users to find 32-bit apps in its App Store, effectively killing them off until the app developers update their older apps to support the new 64-bit process, which speeds up apps and makes them more usable on newer iPhones and iPads.

When users download iOS 11, they’ll get a notification from the operating system, saying that a particular app “needs to be updated.” Apple’s notification says that the app “will not work with iOS 11” and it will be banned from use until it’s updated.

Apple (AAPL) started to use 64-bit apps in 2013 after the company launched the iPhone 5S, the first smartphone from the company to come with a 64-bit processor. At that time, Apple pressured developers to start taking advantage of the faster chip technology, but still allowed 32-bit apps to be developed and brought to its App Store. In 2015, however, Apple announced that all new apps and updates would need to run on 64-bit.

Get Data Sheet, Fortune’s technology newsletter

While the majority of app developers heeded Apple’s warning and updated their programs, there are still some that have not, which means they haven’t been updated in over two years.

Apple announced last year that it would start to inform users of older and outdated apps, and this year, decided to finally stop supporting the older programs. Since last year, users have only been informed that their older apps would “slow down” their devices but Apple would allow them to be used. Now, though, Apple has seen enough and is stopping them in their tracks.

Apple’s iOS 11 will be available for download starting today. The software is free and users will get a notification on their iPhones and iPads when it’s ready to be downloaded.

About the Author
By Don Reisinger
See full bioRight Arrow Button Icon

Latest in Tech

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
Fortune Secondary Logo
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Tech

U.S. President Donald Trump delivers the State of the Union address during a joint session of Congress in the House Chamber at the Capitol on February 24, 2026 in Washington, D.C.
EnergyData centers
Your utility bills keep going up. Here’s everyone you can blame—AI data centers included
By Jordan BlumMarch 1, 2026
2 hours ago
PoliticsColleges and Universities
Pentagon chief blocks officers from attending Ivy League schools and other top universities, including partners on AI and space
By Jason MaFebruary 28, 2026
10 hours ago
AIAnthropic
Anthropic CEO Dario Amodei says ‘we are patriotic Americans’ committed to defending the U.S. but won’t budge on ‘red lines’
By Jason MaFebruary 28, 2026
14 hours ago
sarandos
InvestingMedia
3 things we will never know after Netflix pulled out of the Warner Bros. bidding, handing it to Paramount
By Nick LichtenbergFebruary 28, 2026
18 hours ago
OpenAI CEO Sam Altman
AIAnthropic
OpenAI sweeps in to ink deal with Pentagon as Anthropic is designated a ‘supply chain risk’—an unprecedented action likely to crimp its growth
By Jeremy KahnFebruary 28, 2026
18 hours ago
Big TechAmerican Politics
Your spend as a ‘weapon’: Scott Galloway’s ‘Resist and Unsubscribe’ movement asks you to ditch Amazon, Apple, and Netflix to oppose Trump
By Kristin StollerFebruary 28, 2026
22 hours ago

Most Popular

placeholder alt text
Success
Japanese companies are paying older workers to sit by a window and do nothing—while Western CEOs demand super-AI productivity just to keep your job
By Orianna Rosa RoyleFebruary 27, 2026
2 days ago
placeholder alt text
Middle East
Iran is now on 'death ground' amid existential threat from U.S. attacks and could 'go big' in retaliation, former NATO commander warns
By Jason MaFebruary 28, 2026
16 hours ago
placeholder alt text
AI
The week the AI scare turned real and America realized maybe it isn't ready for what's coming
By Nick LichtenbergFebruary 28, 2026
23 hours ago
placeholder alt text
Success
Walmart exec says U.S. workforces needs to take inspiration from China where ‘5 year-olds are learning DeepSeek’
By Preston ForeFebruary 27, 2026
2 days ago
placeholder alt text
Personal Finance
Current price of gold as of February 27, 2026
By Danny BakstFebruary 27, 2026
2 days ago
placeholder alt text
Middle East
Dubai’s worst nightmare unfolds as Iran strikes Gulf neighbors
By Dana Khraiche, Fiona MacDonald and BloombergFebruary 28, 2026
12 hours ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.