iOS 26.4.2 (23E261) for iPhone 17

✓ This firmware is signed. This means that you can restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore.

Release DateApril 22, 2026
Upload DateApril 19, 2026
FilenameiPhone18,3_26.4.2_23E261_Restore.ipsw
Filesize10 GiB
SHA256sum380e48cd97fcc19ec4d0b9eb1c8e0898c34e7e0264524affe8d94ecf04628b98
MD5sum2a99dcdcd8c0af6b78901a81d3d4f91f
SHA1sumad74503cddd37bc6b6145dffd4879437c4cf6c98
IdentifieriPhone18,3
TagsiOS iOS 26.4.2 iPhone 17

iOS 26.4.2 Release Notes

Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

This update provides bug fixes and security updates for your iPhone.

For information on the security content of Apple software updates, please visit this website:

https://support.apple.com/100100

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