title: Update android studio without reinstall
body: <p>I saw Android Studio has a Beta version, 0.8.0.</p>
  
  <p>The Android Studio said that the update available, But when I click on download, It takes me to the Android Studio download page.</p>
  
  <p>In earlier updates, They were installed by the software in the background.</p>
  
  <p>I'd like to know how to do it with this version,</p>
  
  <p>Because I already downloaded all the SDK things on the current version of Android Studio, and If i'll download it again, I'll need to reinstall and download all the SDK libraries again. </p>
  
  <p>Thanks.</p>