Monday, 14 January 2013

Android Version Detail


Version history by API level

API level 1, Android 1.0

Android 1.0, the first commercial version of the software, was released on 23 September 2008.[15] The first Android device, the HTC Dream,[16] incorporated the following Android 1.0 features:

API level 2, Android 1.1

On 9 February 2009, the Android 1.1 update was released, initially for the HTC Dream only. Android 1.1 was known as "Petit Four" internally, though this name was not used officially.[23] The update resolved, changed the Android API and added a number of features:[24]

API level 3, Android 1.5 Cupcake

On 30 April 2009, the Android 1.5 update was released, based on Linux kernel 2.6.27.[25][26] This was the first release to officially use a name based on a dessert ("Cupcake"), a theme which would be used for all releases henceforth. The update included several new features and UI amendments:[27]

API level 4, Android 1.6 Donut

On 15 September 2009, the Android 1.6 SDK – dubbed Donut – was released, based on Linux kernel 2.6.29.[29][30][31] Included in the update were numerous new features:[29]

API level 5, Android 2.0 Eclair

On 26 October 2009, the Android 2.0 SDK – codenamed Eclair – was released, based on Linux kernel 2.6.29.[32] Changes included:[33]

API level 6, Android 2.01 Eclair

API level 7, Android 2.1 Eclair

API level 8, Android 2.2.x Froyo

On 20 May 2010, Android 2.2 (Froyo, short for Frozen Yogurt) SDK was released, based on Linux kernel 2.6.32.[37]

API level 9, Android 2.3-2.3.2 Gingerbread

On 6 December 2010, the Android 2.3 (Gingerbread) SDK was released, based on Linux kernel 2.6.35.[44][45] Changes included:[44]

API level 10, Android 2.3.3-2.3.7 Gingerbread

API level 11, Android 3.0 Honeycomb

On 22 February 2011, the Android 3.0 (Honeycomb) SDK – the first tablet-only Android update – was released, based on Linux kernel 2.6.36.[54][55][56][57] The first device featuring this version, theMotorola Xoom tablet, was released on 24 February 2011.[58] The update's features included:[54]

API level 12, Android 3.1 Honeycomb

API level 13, Android 3.2 Honeycomb

API level 14, Android 4.0-4.0.2 Ice Cream Sandwich

The SDK for Android 4.0.1 (Ice Cream Sandwich), based on Linux kernel 3.0.1,[64] was publicly released on 19 October 2011.[65] Google's Gabe Cohen stated that Android 4.0 was "theoretically compatible" with any Android 2.3.x device in production at that time.[66] The source code for Android 4.0 became available on 14 November 2011.[67] The update introduced numerous new features, including:[68][69][70]

API level 15, Android 4.0.3-4.0.4 Ice Cream Sandwich

Support for Adobe Systems' Flash player ended with Ice Cream Sandwich.

API level 16, Android 4.1 Jelly Bean

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, triple buffering, extended vsync timing and a fixed frame rate of 60 fps to create a fluid and "buttery-smooth" UI.[79] Android 4.1 Jelly Bean was released to the Android Open Source Project on 9 July 2012,[80] and the Nexus 7 tablet, the first device to run Jelly Bean, was released on 13 July 2012.[81]

API level 17, Android 4.2 Jelly Bean

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.[91] Instead of rescheduling the live event, Google announced the new version with a press release, under the slogan "A new flavor of Jelly Bean". The first devices to run Android 4.2 were LG's Nexus 4 and Samsung's Nexus 10, which were released on 13 November 2012.[3][92]

Posted by

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)