Appium 1.4.8 release

Hello,

I wanted to know what Android API level is supported by Appium 1.4.8 release because when I run emulator of api version 22 app doesn’t launch the same when I tried using api version 19 then appium could run the app by loading scripts. What will be difference here?

Kindly update me complete list of Android API levels supported in appium 1.4.8