For AI agents: a documentation index is available at the root level at /llms.txt and /llms-full.txt. Append /llms.txt to any URL for a page-level index, or .md for the markdown version of any page.
Hybrid App and Doctor App are now supported in visionOS.
Swift 6, minimum iOS 13.
Change some API signatures.
Bug fixes and improvements.
Version 4.3.4
Improved thread safety for concurrent header generation.
Version 4.3.3
Enhanced response handling to detect block responses regardless of their position within a JSON payload.
Version 4.3.2
Fixed an issue where the challenge’s completion callback might not be invoked during network disruptions.
Version 4.3.1
Bug fixes and improvements
Version 4.3.0
Added support for Xcode 26 and iOS/iPadOS/visionOS 26.
Version 4.2.0
Sightline Cyberfraud Defense is now supported on mobile with a unified, secure Human Session, improving identification, authentication, and stability. Customers must upgrade to this version of the SDK to enable Sightline.
Version 4.1.2
Fixed a random crash.
Version 4.1.1
Added Accessibility (VoiceOver) support for challenge page and doctor app.
Fixed challenge presentation for SwiftUI and iPadOS.
Changed the URLResponse parameter to be optional in canHandleResponse and handleResponse functions to simplify usage.
Version 4.1.0
Fixed a bug that cause the calibration screen to appear sometimes.
