Late iOS 18 point release on the Apple Intelligence debut train. iPhone XS/XR could still install iOS 18; they cannot install iOS 26 or 27.
| Version | iOS 18.3 |
|---|---|
| Build (as listed here) | 22D63 |
| Release date | January 27, 2025 |
| Status in this edition | iOS 18 historical |
| Minimum device (this row) | iPhone XS / XR |
| Who it is for | iPhone XS / XR owners who cannot move to iOS 26/27, until Apple stops signing this train. |
What changed in this train
- Apple Intelligence remained limited to A17 Pro / A18 hardware with sufficient unified memory.
- iPhone XS, XR, 11–15 (non-Pro 15) received the OS train without on-device foundation models.
Security content
Recorded CVE count for this historical row: 28. Re-check Apple security updates if you need the current advisory.
Install path
Settings → General → Software Update. Apple’s iOS 26 download article still documents Automatic Updates, Download and Install, and Update Tonight — the same operator path used on iOS 27. Back up first.
Next useful pages
Sources
Prepared by the iPhone Update Editorial Desk. Independent technical reference. Not affiliated with Apple Inc.