title: What is the <module>/release/output.json generated by Android Studio
body: <p>I recently noticed a new file generated at <code>&lt;module&gt;/release/output.json</code> by Android Studio 3 Canary 1 each time I run <code>Build</code> -> <code>Generate Signed APK...</code>, which has contents that look like following.</p>
  
  <p>Can anyone confirm seeing this behavior as well? Or is it due to some local configuration on my laptop?</p>
  
  <p>And can anyone explain the purpose of this file? Is it safe to add to <code>.gitignore</code>?</p>
  
  <pre><code>[{
    "outputType": {
      "type": "APK"
    },
    "apkInfo": {
      "type": "MAIN",
      "splits": [],
      "versionCode": 32
    },
    "outputFile": {
      "path": "/path/to/the/generated/release/filename.apk"
    },
    "properties": {
      "packageId": "com.example.android",
      "split": ""
    }
  }]
  </code></pre>