Timeline: Android versions

Sep 23, 2008

Alpha

Version: 1.0 Discontinued
Characteristics:

-Android Market
-The WiFi and Bluetooth technologies were supported
-Camera apps were supported

Feb 9, 2009

Beta

Version: 1.1 Discontinued
(only for the HTC Dream)
Characteristics:
-Embed file saving option

Apr 27, 2009

Cupcake

Version: 1.5 Discontinued Characteristics:
It was based on Linux 2.6.27, The Widget appearance, Auto rotation animation

Sep 15, 2009

Donut

Version: 1.6 Discontinued Characteristics: Improvements on the camera and gallery apps, Multilingual engine WVGA Screens were supported.

Oct 26, 2009

Eclair

Version: 2.0-2.1 Discontinued Characteristics: Bluetooth 2.1, animated backgrounds

May 20, 2010

Froyo

Version: 2.2-2.2.3 Discontinued Characteristics: Internet navigation optimized and capability of doing audio streamings.

Dec 6, 2010

Gingerbread

Version: 2.3-2.3.7 Discontinued Characteristics: Power and application management and improvements on the standard Android keyboard.

Feb 22, 2011

Honeycomb

Version: 3.0-3.2.6 Discontinued Characteristics: Notification bar, Multitasking option was optimized

Oct 18, 2011

Ice Cream Sandwich

Version: 4.0-4.0.4 Discontinued Characteriditics: File creation improvements were made and The Android Beam appearance which allows the NFC.

Jul 9, 2012

Jelly Bean

Version: 4.1-4.3.1 Discontinued Characteristics: Triple buffer it ran at 60 fps and it was capable of anticipating the tactil signals.

Oct 31, 2013

KitKat

Version: 4.4-4,4.4 Discontinued Characteristics: Printing via WiFi allowed and some visual improvements.

Nov 12, 2014

Lollipop

Version: 5.0-5.1.1 Supported Characteristics: The interface was made much more intuitive, the notification bar and system was updated, and a battery saving programm that extended the life of the battery for about 90 minutes

Oct 5, 2015

Marshmallow

Version: 6.0-6.0.1 Supported Characteristics: Fingerprint authetification, 4K resolution started being supported and improvements on the RAM memory management.