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List of iOS operating systems (all time)

A list of versions of iOS – mobile operating systems belonging to the iOS family (originally iPhone OS family).

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iOS 4
1

iOS 4

(2010)
iOS 4 is the fourth version of the iOS mobile operating system designed by Apple Inc. It was released on June 21, 2010, and was the first major release to be renamed to simply "iOS", and the first major release to drop support for...
0
0
from 0 votes
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iOS 5
2

iOS 5

(2011)
iOS 5 is the fifth version of the iOS mobile operating system designed by Apple Inc. It had the fewest updates out of all the major iOS versions. It was preceded by iOS 4 (final version was 4.3.5) and succeeded by iOS 6, which was...
0
0
from 0 votes
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iOS 6
3

iOS 6

(2012)
iOS 6 is the sixth major release of the iOS mobile operating system designed by Apple Inc., initially released on September 19, 2012. The final version of iOS 6 is 6.1.6. It was preceded by iOS 5 (final version was 5.1.1) and was...
8
8
from 1 vote
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iOS 8
4

iOS 8

(2015)
iOS 8 is the eighth major release of the iOS mobile operating system designed by Apple Inc. as the successor to iOS 7. It was announced at the company's Worldwide Developers Conference (WWDC) 2014 on June 2, 2014, and was released...
6
6
from 1 vote
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iOS 9
5

iOS 9

(2015)
iOS 9 is the ninth major release of iOS, the mobile operating system by Apple Inc. It is the successor to iOS 8 and focuses less on new features and more on under-the-hood optimizations, as well as battery improvements. It was ann...
6.5
6.5
from 2 votes
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iPhone OS 1
6

iPhone OS 1

iPhone OS 1 is the first major release of iOS. iPhone OS 1.1.5 is the latest and final version of iPhone OS 1. This version of iOS was the first iteration of Apple's touch-centric mobile operating system. No official name given on...
0
0
from 0 votes
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iPhone OS 2
7

iPhone OS 2

(2008)
iPhone OS 2 is the second major release of iOS. It was the first release of iOS to support third-party applications via the App Store. iPhone OS 2.2.1 was the final version of iPhone OS 2. iPhone OS 2.0, the second major release o...
7
7
from 1 vote
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iPhone OS 3
8

iPhone OS 3

(2009)
iPhone OS 3, renamed iOS 3 when support for the iPad was added in iOS 3.2, is the third version of the iOS mobile operating system designed by Apple Inc.. iPhone OS 3.0 became available with the iPhone 3GS. It was released on June...
7
7
from 1 vote
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