title: Targeting 64 bit architectures on Xamarin Android
body: <p>I received an email from Google that we need to start supporting 64-bit CPUs in our Android apps by August 1, 2019. In their <a href="https://developer.android.com/distribute/best-practices/develop/64-bit" rel="noreferrer">documentation</a>, it states that there should be a lib/arm64-v8a folder in your apk contents if you're correctly supporting 64 bit.</p>
  
  <p><a href="https://i.stack.imgur.com/5jX7f.png" rel="noreferrer"><img src="https://i.stack.imgur.com/5jX7f.png" alt="enter image description here"></a></p>
  
  <p>In my Xamarin Project Options > Build > Compiler settings, my Platform target is set to "Any" so I would expect it to build both 32 and 64 bit versions. However, when I generate a release build and package it into an apk, when I browse the apk it only has a lib/armeabi-v7a folder, there is no v8a folder. So what do I need to do to support 64 bit architectures?</p>
  
  <p>EDIT: I should have included this screenshot, showing my Supported ABIs:</p>
  
  <p><a href="https://i.stack.imgur.com/WtNKP.png" rel="noreferrer"><img src="https://i.stack.imgur.com/WtNKP.png" alt="enter image description here"></a></p>