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iOS 4 is the fourth major release of the iOS mobile operating system developed by Apple Inc., being the successor to iPhone OS 3.It was announced at the Apple Special Event on April 8, 2010, and released on June 21, 2010. iOS 4 was the first version branded as "iOS" rather than "iPhone OS", [1] due to the release of the iPad.
iOS version history. iOS is a mobile operating system developed by Apple Inc. and was first released as iPhone OS in June 2007, coinciding with the launch of the first generation iPhone. [1] iPhone OS was renamed iOS following the release of the iPad, starting with iOS 4. [2] With iOS 13, Apple began offering a separate operating system, iPadOS ...
Game Center was announced during an iOS 4 preview event hosted by Apple on April 8, 2010. A preview was released to registered Apple developers in August. [167] It was released on September 8, 2010, with iOS 4.1 on iPhone 4, iPhone 3GS, and iPod Touch 2nd generation through 4th generation. [169]
On October 17, 2007, Steve Jobs, in an open letter posted to Apple's "Hot News" weblog, announced that a software development kit (SDK) would be made available to third-party developers in February 2008. [76] The iPhone SDK was officially announced and released on March 6, 2008. [77]
The Android 4.1 upgrade was released to the general public for GSM Galaxy Nexus models on July 10, 2012. [ 7 ] [ 12 ] [ 13 ] In late 2012, following the official release of Jelly Bean, a number of third-party Android OEMs began to prepare and distribute updates to 4.1 for their existing smartphones and tablets, including devices from Acer , HTC ...
The iPad can be jailbroken on iOS versions 4.3 through 4.3.3 with the web-based tool JailbreakMe 3.0 (released in July 2011), [115] and on iOS versions including 5.0 and 5.0.1 using redsn0w. [116] Absinthe 2.0 was released on May 25, 2012, as the first jailbreak method for all iOS 5.1.1 devices except the 32 nm version of the iPad 2. [117]
Windows 11 is the latest major release of Microsoft 's Windows NT operating system, released on October 5, 2021. It succeeded Windows 10 (2015) and is available for free for any Windows 10 devices that meet the new Windows 11 system requirements. Windows 11 features major changes to the Windows shell influenced by the canceled Windows 10X ...
The software release life cycle is the process of developing, testing, and distributing a software product (e.g., an operating system). It typically consists of several stages, such as pre-alpha, alpha, beta, and release candidate, before the final version, or "gold", is released to the public. An example of a basic software release life cycle.