iOS 6.1 beta 2 has been released. Its changelog is quite slim. The build number is 10B5105c, and thebeta is also available for the latest iPads, which includes the iPad mini and the iPad 4. You’ll find the release notes below. If you’re already on the first beta, then you should be seeing beta 2 as an over-the-air (OTA) update. If you aren’t already on a beta, then you probably know what to do anyway.
iOS SDK 6.1 provides support for developing iOS apps, and it includes the complete set of Xcode tools, compilers, and frameworks for creating apps for iOS and OS X. These tools include the Xcode IDE and the Instruments analysis tool, among many others.
With this software you can develop apps for iPhone, iPad, or iPod touch running iOS 6.1. You can also test your apps using the included iOS Simulator, which supports iOS 6.1. iOS SDK 6.1 requires a Mac computer running OS X v10.7.4 (Lion) or later.
This version of iOS is intended for installation only on devices registered with Apple’s Developer Program. Attempting to install this version of iOS in an unauthorized manner could put your device in an unusable state.
As of iOS 6.1, the relevance behavior has changed for boarding passes that include both a relevant date and a relevant location. The date must match for these passes to be relevant. If both the date and location match, they are relevant for a longer window of time. You are encouraged to provide both pieces of information when they make sense for your passes.
In iOS 6.1, a new Reset Advertising Identifier button has been added to Advertising Settings. This button resets the Advertising Identifier so that future requests will return a different value.
This release does not support testing In-App Purchase in iOS Simulator. For apps that use this feature, please test on a device.
Weibo shows up in the Settings app only if a Chinese keyboard is enabled.
When using the iOS 6.1 SDK on OS X v10.8 (Mountain Lion), if you use the iOS 5.0 or iOS 5.1 “Legacy SDK” in iOS Simulator, you will not be able to sign in to Twitter via the Settings pane and Twitter.frameworkwill not work correctly. If you need to test Twitter features, you will need to choose either the iOS 6.1 or iOS 6.0 Simulator run destination or test with iOS 5.x on a device. These problems do not occur when running Simulator on OS X v10.7 (Lion).