iOS 5.1 Beta 2 iPhone, iPad And iPod Touch (Download)

Apple launched iOS 5.1 beta 2 for iPhone,iPad and iPod, this beta is available for developers only, and according to Apple’s launch note, this version should fix iPhone drain battery, well I hope this be true because a huge number of users facing battery problem, read iOS 5.1 beta 2 changelog after the jump:
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Developing……….


Accounts

When creating an iCloud account, you can use any Apple ID as long
as it is a full email address and not a MobileMe account. If you have a
MobileMe account, you can move that account to iCloud. You can find more
information at: [You must be registered and logged in to see this link.]

APIs

• The NSNetService class and CFNetService APIs do not
  include P2P interfaces by default. To browse, register, or resolve
  services over P2P interfaces, an application needs to use the Bonjour DNSService*() APIs noted below.
  
• Setting the interfaceIndex parameter to kDNSServiceInterfaceIndexAny in the following API’s will not include P2P interfaces by default. To include P2P interfaces, you must now set the kDNSServiceFlagsIncludeP2P flag when usingkDNSServiceInterfaceIndexAny or set the interfaceIndex to kDNSServiceInterfaceIndexP2P. The affected APIs are:
  
  
  
  • DNSServiceBrowse
    
  • DNSServiceRegister
    
  • DNSServiceResolve
    
  • DNSServiceRegisterRecord
    
  • DNSServiceQueryRecord
    
  
  

GameKit

FIXED: App icons and profile photos are not loading in apps using Game Center.

iCloud Photo Stream

NEW: Photos taken using iOS 5.1 can be deleted
from Photo Stream on your device and will be removed automatically from
Photo Stream on your other iOS 5.1 devices. Older photos can be manually
deleted from your iOS 5.1 devices.

iCloud Storage

• Provisioning profiles must be enabled for iCloud in the iOS
  Provisioning Portal. To enable a provisioning profile for iCloud,
  navigate to the App ID section of the iOS Provisioning Portal and
  configure your App ID for iCloud. After enabling the App ID for iCloud,
  regenerate your provisioning profiles to enable them for iCloud.
  
• The setSortDescriptors: method of NSMetadataQuery is not supported.
  
• In iOS 5, files that are protected via Data Protection cannot be used with iCloud Storage APIs.
  
• File names are case-insensitive in Mac OS X but case-sensitive in
  iOS. This can lead to problems when sharing files between the two using
  iCloud. You should take steps on iOS to avoid creating files whose names
  differ only by case.
  

Movie Player

Starting in iOS 5.0, in order to facilitate finer-grained playback
control, a movie player is not automatically prepared to play upon
creation. Call the prepareToPlay method to prepare the movie player. For more information, see MPMoviePlayerController Class Reference

Music Player

Using shake-to-shuffle causes Music app to freeze and playback to stop.

Security

In iOS 5, signing certificates with MD5 signatures is not
supported. Please ensure that certificates use signature algorithms
based on SHA1 or SHA2.

setup Assistant

NEW: Immediately after completing the Setup
Assistant, it may re-appear and show the wifi screen and/or final “Thank
You” screen. The workaround when in this loop is to reboot the device.

SpringBoard Lock Screen

NEW: The lock screen can intermittently get in a
state where double-clicking the home button will no longer bring up the
camera button. To get out of that state, you need to restart the device.

Xcode/Developer Tools

• NEW: This preview release of Xcode 4.3 is
  distributed as a single application bundle, Xcode.app. Delivering the
  Xcode tools in a single app bundle allows Xcode to be installed directly
  from the App Store, without the additional step of running the Install
  Xcode app. To install Xcode during the preview period, double-click to
  open the downloaded DMG file, and drag the Xcode.app file
  to your Applications folder.Within Xcode, you can launch additional
  developer tools, such as Instruments and FileMerge, via the menu item
  Xcode -> Open Developer Tool. You can then pin the tool on your Dock
  for access when Xcode is not running. Not all of the tools previously
  included in the Xcode installer are bundled in this preview release.
  
• In the iOS 5 development tools, it is possible to extract APIs used
  by an application and have them checked for use of private APIs. This
  option is offered when you validate your application for app submission.
  
• FIXED: A bug in the documentation organizer causes
  an exception when you type in any field in the content area. To prevent
  the need to log into the developer website from Xcode, download
  documentation sets locally using Xcode’s documentation preference pane
  and enable the ‘Check for and install updates automatically’ checkbox as
  a workaround.
  
• FIXED: “uninstall-devtools” script mistakenly
  removes files and packages even if Xcode is still running. Be sure to
  quit any running copy of Xcode before starting the “uninstall-devtools”
  script.
  
• FIXED: The Network Link Conditioner daemon cannot
  be launched after installing the Networking Link Conditioner without a
  reboot. You can manually workaround the issue with a restart or by the
  following command: sudo launchctl load
  /system/library/launchdaemons/com.apple.networklinkconditioner.plist.]
  

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