Apple has stopped allowing users to install iOS 18.3.2 on their devices. This change happened after the company released iOS 18.4 on March 25, 2025. When Apple stops signing an older version like this, it means iPhones and iPads can no longer go back to it once updated to a newer one. This is a normal step for Apple to keep everyone using the latest software.
The iOS 18.3.2 update came out on February 18, 2025. It was a small fix focused on solving security problems and bugs from earlier versions. Soon after, iOS 18.4 arrived with bigger changes, like new features and better protection for users. By stopping support for iOS 18.3.2, Apple makes sure people upgrade to the safer and improved iOS 18.4.
When Apple stops signing an older version, it’s done on their servers. This blocks users from downloading or installing that version, even if they try using iTunes or Finder on a computer. People who already have iOS 18.3.2 can keep using it, but they won’t get official support or security updates for it anymore.
This move pushes users to stay current with the latest system, which helps keep devices secure and working well. If you’re still on iOS 18.3.2, you might want to update to iOS 18.4 soon. It’s got more tools and fixes to make your phone or tablet run better. Apple’s choice here is all about keeping things safe and up to date for everyone.