iOS 5.0 to iOS 5.1 API Differences
Accelerate
No changes
Accounts
No changes
AddressBook
No changes
AddressBookUI
No changes
AssetsLibrary
ALAssetRepresentation.h
AudioToolbox
AudioFormat.h
Added kAudioFormatProperty_FormatIsEncrypted
AudioUnit
AUComponent.h
Added kAudioUnitSubType_RoundTripAAC (no architecture available)
AudioUnitParameters.h
Removed k3DMixerParam_PostAveragePower (no architecture available)
Removed k3DMixerParam_PostPeakHoldLevel (no architecture available)
Removed k3DMixerParam_PreAveragePower (no architecture available)
Removed k3DMixerParam_PrePeakHoldLevel (no architecture available)
AVFoundation
AVError.h
CFNetwork
No changes
CoreAudio
CoreAudioTypes.h
Added kAudioFormatMPEG4AAC_ELD_V2
CoreBluetooth
No changes
CoreData
No changes
CoreFoundation
CFURL.h
CoreGraphics
No changes
CoreImage
No changes
CoreLocation
No changes
CoreMedia
No changes
CoreMIDI
No changes
CoreMotion
No changes
CoreTelephony
No changes
CoreText
No changes
CoreVideo
CVPixelBuffer.h
EventKit
No changes
EventKitUI
No changes
ExternalAccessory
No changes
Foundation
NSURL.h
GameKit
No changes
GLKit
No changes
GSS
No changes
iAd
No changes
ImageIO
No changes
MapKit
No changes
MediaPlayer
No changes
MessageUI
No changes
MobileCoreServices
No changes
NewsstandKit
No changes
OpenAL
No changes
OpenGLES
No changes
QuartzCore
No changes
QuickLook
No changes
Security
No changes
StoreKit
No changes
SystemConfiguration
No changes
No changes
UIKit
UISplitViewController.h
UITextInput.h