Details of android versions from unreleased alpha and beta , unnamed Android 1.0, 1.1 , cupcake, Donut, Eclair, Froyo, Gingerbread, Honeycomb, Icecream sandwich , Jellybean, KitKat, Lolipop, Marshmallow, and latest Nought .

1. THE
ANDROID
STORY

2. Alpha
• 1st internal release
• Released on November 2007
• Names of fictional robots were
chosen, "Astro Boy", "Bender”
• Dan Morrill created some of the first
mascot logos
• But the current green Android logo
was designed by Irina Blok later.

3. Beta
• 2nd internal release
• Released on November 5, 2007
• The November 5 date is popularly
celebrated as Android's "birthday".
• Public beta versions of the SDK were
released later.

4. Android 1.0
API Level 1
• First commercial version
• Released on September 23, 2008
• The first commercially available
Android device was the HTC Dream
• Features include Android market,
camera , Gmail, Maps, Google talk,
YouTube player , Wi-Fi …

5. Android 1.1
API Level 2
• Released on February 9, 2009
• Was known as "Petit Four" internally
• The update resolved bugs
• Changed the Android API

6. Cupcake
Android 1.5
API Level 3
• Released on April 27, 2009
• Support for Widgets
• Animated screen transitions, Auto-
rotation option
• Ability to upload videos
to YouTube, Picasa

7. Donut
Android 1.6
API Level 4
• Released on September 15, 2009
• Quick search box
• Screen size diversity
• Google play

8. Eclair
Android 2
API Level 5,6,7
• Released on October 26, 2009
• Google maps navigation
• Home screen customization
• Speech to text

9. Froyo
Android 2.2
API Level 8
• Released on May 20, 2010
• Voice action
• USB tethering and Potable hotspot
• Speed, memory, and performance
optimizations

10. Gingerbread
Android 2.3 – 2.3.3
API Level 9 -10
• Released on December 6, 2010
• Support for multiple cameras
• Gaming APIs, NFC
• Battery management

11. Honeycomb
Android 3.0, 3.1, 3.2
API Level 11, 12, 13
• Released in February 22, 2011
• Tablet friendly design
• System bar
• Quick settings

12. Icecream Sandwich
Android 4.0,4.0.3
API Level 14,15
• Released on October 18, 2011
• Customize home screen
• Android beam
• Data Usage control

13. Jelly Bean
Android 4.1-4.3
API Level 16-18
• Released on July 9, 2012
• Google Now
• Actionable notification
• Switchable account

14. KitKat
Android 4.4, 4.4.w
API Level 19, 20
• Released on October 31, 2013
• Ok Google
• Immersive design
• Smart Dialer

15. Lollipop
Android 5.0,5.1
API Level 21,22
• Released on November 12, 2014
• Material Design
• Notification
• Multiscreen

16. Marshmallow
Android 6.0
API Level 23
• Released on October 5, 2015
• Now on tap
• Permission can be turned off.
• Doze and app standby for battery
optimization.

17. Nought
Android 7.0
API Level 24
• Released on 22 August 2016
• Multi window
• Notification sheets
• Switch apps by double tapping in
overview button