Apple launched iOS 17.2.1 on Dec. 19, nearly a week after rolling out iOS 17.2. The Journal app and Contact Key Verification were among the new features included in the last release, but iOS 17.2.1 appears to be a patched and bug-fixing incremental upgrade.
Navigate to Settings > General > Software Update, choose Install Now, and then follow the on-screen instructions to download the update.
The update description on your iPhone states, “This update provides important bug fixes and is recommended for all users,” according to Apple. It’s unclear which bugs iOS 17.2.1 fixes, though, because Apple hasn’t made thorough release details available online.
Currently Trending
Use This $199 Power Kit to Generate and Store Your Own Electricity
Solar Panel and Station
Top Mesh Routers for Wi-Fi in the Whole House as of January 31, 2025
Apple normally posts an update’s release notes online when the download becomes available. But there have been some instances where Apple hasn’t posted these notes, like with the release of iOS 17.1.1 and iOS 17.0.2.
Apple didn’t immediately reply to a request for comment.
See our iOS 17 cheat sheet, what was in iOS 17.1, and all the new features in iOS 17.2 for more information on iOS 17.