iOS 11.1 - rilasciata la beta 2 agli sviluppatori

Notes and Known Issues

ARKit

Known Issues

• ContinuingfromabreakpointwhiledebugginganARSessionmayresultinVIObreaking. Any visual objects placed in the world/anchor are not visible. (31561202)

Audio

Resolved Issues

• Fixed an occasionally occurring issue with audio latency or distortion on iPad Pro (12.9- inch) (2nd generation) and iPad Pro (10.5-inch). (33844393)

AVFoundation

Resolved Issues

Stillcapturerequestsusingthe720p30videoformatwiththe depthDataDeliveryEnabled property of AVCapturePhotoSettings set to true now works correctly. (32060882)
Depthvaluesinthenondefault160x120and160x90depthdataformatsnowreturnthe correct values. (32363942)

Known Issues

• When using the TrueDepth front-facing camera on iPhone X, setting the capture device's activeFormat to a binned video format (see AVCaptureDeviceFormat isVideoBinned) for capture and enabling delivery of camera calibration data causes the resulting AVCameraCalibrationData to contain invalid information for the intrinsicMatrix property. (34200225)

Workaround: Select an alternate capture format whose isVideoBinned property is false.

Note: Configuring a capture session using a session preset never selects binned formats. Certificates

Resolved Issues

• Client certificate-based authentication now works for servers using TLS 1.0 and 1.1. (33948230)

EventKit

New Issues

• InitializinganEKCalendarChooserfromEventKitcanresultinanappcrash. (34608102)

Known Issues

• Storing data to a nondefault event store in EventKit may not work. (31335830) FileProvider

Resolved Issues

• Apps with a deployment target earlier than iOS 11 that subclass NSFileProviderExtension now work on versions of iOS prior to iOS 11. (34176623)

Foundation

Resolved Issues

• NSURLSession and NSURLConnection now load URLs correctly when the system is configured with certain PAC files. (32883776)

Known Issues

• ClientsofNSURLSessionStreamTaskthatuseanon-secureconnectionfailtoconnect when an error occurs during PAC file evaluation and the system is configured for either Web Proxy Auto Discovery (WPAD) or Proxy Automatic Configuration (PAC). A PAC evaluation failure can occur when the PAC file contains invalid JavaScript or the HTTP host serving the PAC file is unreachable. (33609198)

Workaround: Use startSecureConnection to establish a secure connection. Location Services

Resolved Issues

• Data from an external GPS accessory is now accurately reported. (34324743)

Notifications

Resolved Issues

• Silent push notifications are processed more frequently. (33278611)

Safari

New Issues

• Some webmail clients don't load correctly. (34826998)

Vision

Known Issues

VNFaceLandmarkRegion2D is currently unavailable in Swift. (33191123)
Facial landmarks identified by the Vision framework may flicker in temporal use cases such as video. (32406440)

Xcode

Known Issues

• Debugging a disabled Messages extension may cause the Messages app to crash. (33657938)

Workaround: Enable the extension before starting the debug session.

• After a simulated iOS device starts up, it's not possible to pull down the Lock screen. (33274699)

Workaround: Lock and unlock the simulated device and then reopen Home screen.