Apple usually tends to release a new version of iOS every year during the release of a new series of iPhones. Apparently, right after they launched the iPhone 17, standing along with the big enhancements of iPhone 17 Plus, iPhone 17 Pro, and iPhone 17 Pro Max in 2025, users noted that it has become mandatory for Day One of the iOS 26 update. The question is, why was this update worth so much fuss?

Apple iOS 26

What is the Importance of the Day One Apple's iOS-26 Update?

Even though the iPhone 17 series comes pre-installed with the iOS 25.6 version, Apple suggested that it is mandatory to upgrade to the latest iOS 26 update to unlock and use the device. This is a new trend since many people were able to use it without updating after buying their new phones in the past.

The Major Reason for This Is

Bug fixes: iOS 25.6 had many significant bugs and some security issues, which have been solved in iOS 26.

Security update: The new iOS version has added many important security patches that help protect user information.

Device Performance Improvements: iOS 26 is crucial to ensure optimum performance of the new A19 chipset.

Software-Hardware compatibility: Some new features of the iPhone 17 series, such as Adaptive Refresh Rate, Smart Capture AI, etc., require iOS 26 to work properly.

Update Mode

During the ignition of the iPhone 17 model, it will notify "Software Update Required to Activate the iPhone" while being connected to Wi-Fi. Just as OTA (Over-the-Air) can be dispatched swiftly.

Apple iOS 26

What If The Update Is Not Installed?

For lack of that upgrade, the Apple iPhone 17 model would not be activated. Thus, you would not be able to use that until the installation of iOS 26 is completed. Mostly, customers who acquired the phone through store advance orders earlier than other deliveries may mainly be affected by this.

If you are considering purchasing the new iPhone 17 model, keep in mind that the Day One iOS 26 update is a mandate. Therefore, with the safekeeping of the new features offered with increased performance, do not delay installing this upgrade to iOS 26 on Day 1 over Wi-Fi!

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