title: Updating FB SDK to latest version not working
body: <p>I have a legacy app that used the old version of <strong>FBSDK</strong>, and every time I logged in to FB developer dashboard I see this warning: </p>
  
  <blockquote>
    <p>Your Facebook SDK for iOS is out of date and missing important iOS 11
    fixes that make it easier for people to log into your app. Upgrade Now</p>
  </blockquote>
  
  <p>I have done updated my FB SDK to v4.40.0 using cocoapods (confirmed this by NSLog <code>[FBSDKSettings sdkVersion]</code>). But what confusing me now is the warning still there even though SDK was successfully updated.</p>
  
  <p>FB gave instruction to update: <br></p>
  
  <blockquote>
    <p>To make your app compatible with iOS 11, use the latest Facebook SDKs
    for iOS. If you link to the SDKs with CocoaPods, you must update your
    pods for the SDKs your app uses and recompile your app. You can also
    download the latest version of the Facebook iOS SDK, integrate it into
    your app, and recompile.</p>
  </blockquote>
  
  <p>What I've done so far is :<br>
  • Update SDK using cocoapods ✅<br>
  • Recompile app ✅</p>
  
  <p>Does anyone know that is the real reason why the warning doesn't disappear.<br></p>
  
  <p>Thanks in advance.</p>