title: Recommended Android API levels
body: <p>I am learning the Android SDK and I am getting to the point of getting a bit more comfortable to start doing actual app development. I have done some reading here and there online, and based on my limited understanding, I as a developer, should include the Android API levels that I intend to make the app available to. My question is related to this...</p>
  
  <p>Based on some charts online, it seems to make the most sense to support devices from 2.3 (Gingerbread) all the way to the current KitKat API. So that would mean API level 10 - current. </p>
  
  <p><strong>Question 1</strong> Do I have to download all the API levels in between (i.e. 3.0, 4.0, 4.1, etc...)or is the lowest and highest be enough? </p>
  
  <p><strong>Question 2</strong> If I  do not end up  downloading those API levels in between? What would a user running, say 4.0), experience? Would they be totally unable to run the app? Or would it simply mean that I, as a developer, would not be able to use any of the APIs states in those levels?</p>
  
  <p>I understand that there might be some compatibility issues, from changes in the API which I would need to work out myself.</p>
  
  <p>Thanks you for your clarification.</p>