1. Android 1.0 :
Android 1.0 is the very first version of
Android which was introduced by Google. It had some basic features including web browser support, camera support, Gmail accounts, Google maps and Youtube application. Although it does not have the official version name like further introduces versions but unofficially it is called
Apple Pie. The API level in Android 1.0 version is 1. It is not used anymore in the mobile devices. It was released on 23 September 2008.
2. Android 6.0.1 :
Android 6.0.1 is the next version of Android after Android 6 which was introduced by Google. It had all the features of its previous versions and some new features were also added in this version. Various bugs were fixed and several other issues were solved in this version. New emojis were also added in this version. No new developer features were introduced in this version. Its version name is
Marshmallow. The API level in Android 6.0.1 is 23. It was released on 07 December 2015.
Difference between Android 1.0 and Android 6.0.1 :
