While Apple is full steam ahead on iOS 18, which is expected to drop sometime next month, it hasn’t forgotten about iOS 17, which still dominates most users’ iPhones. Just nine days after the release of iOS 17.6, we already have iOS 17.6.1, and like with most point-point updates, the August 7 software (build 21G93) is all about bug fixes.

There aren’t any security vulnerabilities patched in this update. And there are “important bug fixes” that aren’t named, which is typical of Apple. But there is one primary concern that Apple addressed: a fix for broken Advanced Data Protection.

This update includes important bug fixes and addresses an issue that prevents enabling or disabling Advanced Data Protection.

Advanced Data Protection has been available in the U.S. since iOS 16.2. When enabled, it provides end-to-end encryption for specific iCloud services that didn’t already have it, including your notes, photos, reminders, Safari bookmarks, Wallet passes, voice memos, shortcuts, iCloud backups, and iCloud Drive files.

To update your iPhone to iOS 17.6.1, visit Settings » General » Software Update and follow the on-screen instructions. Apple also issued iPadOS 17.6.1 and macOS 14.6.1, so you’ll also want to update your iPad and Mac if you have those devices.

To enable Advanced Data Protection, go to Settings » [Your Name] » iCloud » Advanced Data Protection. Then, tap “Turn On Advanced Data Protection.” Advanced Data Protection requires two-factor authentication on your Apple Account, at least one recovery option set up, a passcode or password to unlock your iPhone, and updated devices running at least iOS 16.2, iPadOS 16.2, macOS 13.1, watchOS 9.2, tvOS 16.2, HomePod software version 16.2, and/or iCloud for Windows 14.1.