iOS:Framework:First available

iOS 2.0

1. Address Book
2. Address Book UI
3. Audio Toolbox
4. Audio Unit
5. CF Network
6. Core Audio
7. Core Foundation
8. Core Graphics
9. Core Location
10. Foundation
11. IO Kit
12. Media Player
13. Open AL
14. Open GL ES
15. Quartz Core
16. Security
17. System Configuration
18. UI Kit

iOS 2.2

1. AV Foundation

iOS 3.0

1. Core Data
2. External Accessory
3. Game Kit
4. Map Kit
5. Message UI
6. Mobile Core Services
7. Store Kit

iOS 3.2

1. Core Text

iOS 4.0

1. Accelerate
2. Assets Library
3. Core Media
4. Core Motion
5. Core Telephony
6. Core Video
7. Event Kit
8. Event Kit UI
9. iAd
10. Image IO
11. Quick Look

iOS 4.2

1. Core MIDI

iOS 5.0

1. Accounts
2. Core Bluetooth
3. Core Image
4. GL Kit
5. GSS
6. Newsstand Kit
7. Twitter

iOS 6.0

1. Ad Support
2. Media Toolbox
3. Pass Kit
4. Social
5. Video Toolbox

iOS 7.0

1. Game Controller
2. JavaScript Core
3. Media Accessibility
4. Multipeer Connectivity
5. Safari Services
6. Sprite Kit

iOS 8.0

1. AV Kit
2. Cloud Kit
3. Core Audio Kit
4. Health Kit
5. Home Kit
6. Local Authentication
7. Metal
8. Notification Center
9. Photos
10. Photos UI
11. Push Kit
12. Scene Kit
13. Web Kit