Notes and Known Issues
The following issues relate to using iOS SDK 7.1 beta 4 to develop code.
Bluetooth
Known Issue
32-bit apps running on a 64-bit device cannot attach to BTServer.
CFNetwork
Notes
A compatibility behavior has been added to address an issue where some web servers would send the wrong Content-Length value for Content-Encoding: gzip content. Previously, NSURLConnection and NSURLSession would send a network connection was lost / NSURLErrorNetworkConnectionLost (-1005) error in this situation.
The compatibility behavior applies only if the Content-Length value exactly matches the expanded gzipd content. It wont apply for off by 1 or similar miscounting.
Messages
Fixed in iOS 7.1 beta 4
Messages no longer indicates a send failure immediately after sending.
Safari
Notes
A property, minimal-ui, has been added for the viewport meta tag key that allows minimizing the top and bottom bars on the iPhone as the page loads. While on a page using minimal-ui, tapping the top bar brings the bars back. Tapping back in the content dismisses them again.
For example, use <meta name=viewport content=width=1024, minimal-ui>.
UIKit
Known Issues
Bar button background images are ignored in apps built and deployed to iOS 7.1 when they are set using UIBarButtonItem setBackgroundImage:forState:style:barMetrics: with UIBarButtonItemStyleBordered as the style argument.Workaround: Use UIBarButtonItemStylePlain or UIBarButtonItemStyleAny in this case, or use UIBarButtonItem setBackgroundImage:forState:barMetrics:.
If a UITextField or a UILabel that is baseline aligned with constraints has attributes that change after the constraints have been added, the layout may be incorrect. The exception to this is -setFont: on UILabel, which should work as expected.Workaround: Avoid making changes in UITextField or UILabel after adding baseline-alignment constraints. If you must make changes, you should remove the constraints and then reapply them afterward. Note that this is a performance hit, so dont do it unless it is necessary.
The backIndicatorTransitionMaskImage from a storyboard or a xib will not be interpreted correctly at runtime.Workaround: Set the backIndicatorTransitionMaskImage in code.
