Android version history: Difference between revisions

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Revision as of 13:03, 14 November 2012

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{{Use mdy dates|date=May 2012}}

[[File:Android historical version distribution.png|thumb|300px|A chart showing global Android version distribution from November 2009 to November 2012]]

The version history of the [[Android (operating system)|Android]] [[mobile operating system]] began with the release of the Android [[beta (software)|beta]] in November 2007. The first commercial version, Android 1.0, was released in September 2008. Android is under ongoing development by [[Google]] and the [[Open Handset Alliance]], and has seen a number of [[patch (computing)|updates]] to its base operating system since its original release. These updates typically fix [[software bug|bugs]] and add new features. Since April 2009, Android versions have been developed under a [[codename]] and released in alphabetical order: Cupcake, Donut, Eclair, Froyo, Gingerbread, Honeycomb, Ice Cream Sandwich, and Jelly Bean. As of 2012, over 400 million active devices use the Android OS worldwide.<ref>{{cite web|url=http://www.webpronews.com/guess-how-many-android-devices-have-now-been-activated-google-io-2012-06|title=Guess How Many Android Devices Have Now Been Activated [Google I/O]|publisher=WebProNews|date=27 June 2012|accessdate=19 October 2012}}</ref> The most recent major Android update was Jelly Bean 4.2, which was announced in October 2012, and will bewas released on commercial devices in November.<ref>{{cite web|url=http://www.techradar.com/news/phone-and-communications/mobile-phones/android-4-2-release-date-news-and-features-1107255|title=Android 4.2 release date, news and features|publisher=TechRadar.com|date=30 October 2012|accessdate=9 November 2012}}</ref><ref name=New4.2And/>

==Version history==

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Google announced Android 4.1 (Jelly Bean) at the [[Google I/O]] conference on 27 June 2012. Based on Linux kernel 3.0.31, Jelly Bean was an incremental update with the primary aim of improving the functionality and performance of the user interface. The performance improvement involved "Project Butter", which uses touch anticipation, [[Multiple buffering|triple buffering]], extended [[vsync]] timing and a fixed frame rate of 60 [[frames per second|fps]] to create a fluid and "buttery-smooth" UI.<ref>{{cite web|url=http://developer.android.com/about/versions/jelly-bean.html|title=Android 4.1 for Developers|accessdate=27 June 2012}}</ref> Android 4.1 Jelly Bean was released to the [[AOSP#Android_Open_Source_Project|Android Open Source Project]] on 9 July 2012,<ref>{{cite web|last=Queru|first=Jean-Baptiste|title=Android 4.1 in AOSP|url=https://groups.google.com/forum/#!topic/android-building/XBYeD-bhk1o|accessdate=12 July 2012}}</ref> and the [[Nexus 7]] tablet, the first device to run Jelly Bean, was released on 13 July 2012.<ref>{{cite web|url=http://blog.gsmarena.com/nexus-7-gets-android-4-1-1-update-adds-support-for-google-wallet/ |title=Android 4.1.1 Nexus 7 Update|accessdate=12 July 2012}}</ref>

Google was expected to announce Jelly Bean 4.2 at an event in [[New York City]] on 29 October 2012, but the event was cancelled due to [[Hurricane Sandy]].<ref>{{cite web|url=http://www.androidcentral.com/monday-s-google-event-nyc-cancelled-due-hurricane-sandy |title=Monday's Google event in NYC canceled due to Hurricane Sandy |accessdate=29 October 2012}}</ref> The new version was announced with a press release instead of rescheduling the live event, under the slogan "A new flavor of Jelly Bean". The first devices to run Android 4.2 willwere bethe [[LG]]'s [[Nexus 4]] and [[Samsung]]'s [[Nexus 10]], which will bewere released on 13 November 2012.<ref name=New4.2And>{{cite web|url=http://www.knowyourmobile.com/blog/1678521/android_42_jelly_bean_lands_on_nexus_7.html|title=Android 4.2 Jelly Bean lands on Nexus 7|publisher=Know Your Mobile|date=14 November 2012}}</ref>

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