Version 4.0.2

• Please check the updated Wiki for details about the CAS 4 release.
• Added support for the Native Ad format.
• All ad formats are now managed using a CAS ID string with the new CASAppOpen, CASInterstitial, and CASRewarded ad objects.
  Read more about the new implementation below.
  Previously, ad management required working with a CASMediationManager instance.
  You can now preload and cache multiple instances of each ad format, reducing latency and improving ad display performance.
• All ad formats have CASImpressionDelegate to collect impression data via new AdContentInfo structure.
• The present(from: UIViewController?) method for screen ads no longer requires an UIViewController, but it is still recommended when possible. The CAS SDK will attempt to determine the last created UIViewController of your app.
• Added Autoload mode for CASAppOpen ad instance.
• Added automatic initialization of the Tenjin SDK when the API key is provided in the CAS SDK initialization parameters.
• AdError.description now provides more detailed error information.
  A single error code may include multiple detailed messages.
  All error code constants have been moved from AdError to AdErrorCode.
• Added a new adapter for the YSO Network.
• Added a new adapter for Prado Ads (Closed Beta). Contact your account manager if you would like to try this new ad network.
• The automatic display of App Return Ads replaced to new auto show mode for CASAppOpen and CASInterstitial ad instances. To enable this feature, use the isAutoshowEnabled property.
• All adapters have been updated for compatibility with the CAS 4 update. Read more about the adapter versions here.
• 7 new SKAdNetwork Identifiers have been added — find them here.