22 Warnings when imported into 2019.1.0f2

[C132]

Assets\PolyToolkit\Internal\api_clients\poly_client\PolyClient.cs(130,35): warning CS0618: 'WWW' is obsolete: 'Use UnityWebRequest, a fully featured replacement which is more efficient and has additional features'

Assets\PolyToolkit\Internal\api_clients\poly_client\PolyClient.cs(133,40): warning CS0618: 'WWW' is obsolete: 'Use UnityWebRequest, a fully featured replacement which is more efficient and has additional features'

Assets\PolyToolkit\Internal\api_clients\poly_client\PolyClient.cs(137,42): warning CS0618: 'WWW' is obsolete: 'Use UnityWebRequest, a fully featured replacement which is more efficient and has additional features'

Assets\PolyToolkit\Internal\api_clients\poly_client\PolyClient.cs(141,42): warning CS0618: 'WWW' is obsolete: 'Use UnityWebRequest, a fully featured replacement which is more efficient and has additional features'

Assets\PolyToolkit\Internal\api_clients\poly_client\PolyClient.cs(149,48): warning CS0618: 'WWW' is obsolete: 'Use UnityWebRequest, a fully featured replacement which is more efficient and has additional features'

Assets\PolyToolkit\Internal\api_clients\poly_client\PolyClient.cs(152,40): warning CS0618: 'WWW' is obsolete: 'Use UnityWebRequest, a fully featured replacement which is more efficient and has additional features'

Assets\PolyToolkit\Internal\api_clients\poly_client\PolyClient.cs(155,44): warning CS0618: 'WWW' is obsolete: 'Use UnityWebRequest, a fully featured replacement which is more efficient and has additional features'

Assets\PolyToolkit\Internal\api_clients\poly_client\PolyClient.cs(170,40): warning CS0618: 'WWW' is obsolete: 'Use UnityWebRequest, a fully featured replacement which is more efficient and has additional features'

Assets\PolyToolkit\Internal\api_clients\poly_client\PolyClient.cs(174,44): warning CS0618: 'WWW' is obsolete: 'Use UnityWebRequest, a fully featured replacement which is more efficient and has additional features'

Assets\PolyToolkit\Internal\api_clients\poly_client\PolyClient.cs(176,40): warning CS0618: 'WWW' is obsolete: 'Use UnityWebRequest, a fully featured replacement which is more efficient and has additional features'

Assets\PolyToolkit\Internal\api_clients\poly_client\PolyClient.cs(179,44): warning CS0618: 'WWW' is obsolete: 'Use UnityWebRequest, a fully featured replacement which is more efficient and has additional features'

Assets\PolyToolkit\Internal\api_clients\poly_client\PolyClient.cs(194,40): warning CS0618: 'WWW' is obsolete: 'Use UnityWebRequest, a fully featured replacement which is more efficient and has additional features'

Assets\PolyToolkit\Internal\api_clients\poly_client\PolyClient.cs(197,44): warning CS0618: 'WWW' is obsolete: 'Use UnityWebRequest, a fully featured replacement which is more efficient and has additional features'

Assets\PolyToolkit\Internal\entitlement\OAuth2Identity.cs(189,48): warning CS0618: 'WWW' is obsolete: 'Use UnityWebRequest, a fully featured replacement which is more efficient and has additional features'

Assets\PolyToolkit\Editor\CheckBuild.cs(23,27): warning CS0618: 'IPreprocessBuild' is obsolete: 'Use IPreprocessBuildWithReport instead'

Assets\PolyToolkit\Editor\WarnIfManagerNotInScene.cs(21,33): warning CS0618: 'IProcessScene' is obsolete: 'Use IProcessSceneWithReport instead'

Assets\PolyToolkit\Editor\WarnIfManagerNotInScene.cs(21,48): warning CS0618: 'IPostprocessBuild' is obsolete: 'Use IPostprocessBuildWithReport instead'

Assets\PolyToolkit\Editor\AnalyticsSender.cs(119,35): warning CS0618: 'WWW' is obsolete: 'Use UnityWebRequest, a fully featured replacement which is more efficient and has additional features'

Assets\PolyToolkit\Editor\AnalyticsSender.cs(119,60): warning CS0618: 'WWW' is obsolete: 'Use UnityWebRequest, a fully featured replacement which is more efficient and has additional features'

Assets\PolyToolkit\Editor\Importer\PolyImporter.cs(160,77): warning CS0618: 'ReplacePrefabOptions' is obsolete: 'This has turned into the more explicit APIs, SavePrefabAsset, SaveAsPrefabAsset, SaveAsPrefabAssetAndConnect'

Assets\PolyToolkit\Editor\Importer\PolyImporter.cs(160,19): warning CS0618: 'PrefabUtility.ReplacePrefab(GameObject, Object, ReplacePrefabOptions)' is obsolete: 'Use SaveAsPrefabAsset or SaveAsPrefabAssetAndConnect with a path instead.'

Assets\PolyToolkit\Editor\Importer\PolyImporter.cs(171,19): warning CS0618: 'PrefabUtility.CreatePrefab(string, GameObject)' is obsolete: 'Use SaveAsPrefabAsset instead.'