diff --git a/Runtime/Scripts/GLTFSceneExporter.cs b/Runtime/Scripts/GLTFSceneExporter.cs
index aad522e72..92680aa84 100644
--- a/Runtime/Scripts/GLTFSceneExporter.cs
+++ b/Runtime/Scripts/GLTFSceneExporter.cs
@@ -95,7 +95,7 @@ public override bool BeforeMaterialExport(GLTFSceneExporter exporter, GLTFRoot g
 #pragma warning restore CS0618 // Type or member is obsolete
 	}
 
-	[Obsolete("Use ExportContext instead")]
+	[Obsolete("Use UnityGLTF.ExportContext instead. (UnityUpgradable) -> UnityGLTF.ExportContext")]
 	public class ExportOptions: ExportContext
 	{
 		public ExportOptions(): base() { }
diff --git a/Runtime/Scripts/Plugins/Core/GltfPlugin.cs b/Runtime/Scripts/Plugins/Core/GltfPlugin.cs
index 6448c69c3..5a5f38b9f 100644
--- a/Runtime/Scripts/Plugins/Core/GltfPlugin.cs
+++ b/Runtime/Scripts/Plugins/Core/GltfPlugin.cs
@@ -43,4 +43,19 @@ public abstract class GLTFPlugin: ScriptableObject
         [Obsolete("Use a custom Editor for this ScriptableObject instead if you want to override how it looks in the Inspector.")]
         public virtual void OnGUI() { }
     }
+	
+    [Obsolete("Use UnityGLTF.Plugins.GLTFPlugin instead. (UnityUpgradable) -> UnityGLTF.Plugins.GLTFPlugin")]
+    public abstract class GltfPlugin: ScriptableObject {}
+    
+    [Obsolete("Use UnityGLTF.Plugins.GLTFImportPlugin instead. (UnityUpgradable) -> UnityGLTF.Plugins.GLTFImportPlugin")]
+    public abstract class GltfImportPlugin: GltfPlugin {}
+    
+    [Obsolete("Use UnityGLTF.Plugins.GLTFExportPlugin instead. (UnityUpgradable) -> UnityGLTF.Plugins.GLTFExportPlugin")]
+    public abstract class GltfExportPlugin: GltfPlugin {}
+    
+    [Obsolete("Use UnityGLTF.Plugins.GLTFImportPluginContext instead. (UnityUpgradable) -> UnityGLTF.Plugins.GLTFImportPluginContext")]
+    public abstract class GltfImportPluginContext {}
+    
+    [Obsolete("Use UnityGLTF.Plugins.GLTFExportPluginContext instead. (UnityUpgradable) -> UnityGLTF.Plugins.GLTFExportPluginContext")]
+    public abstract class GltfExportPluginContext {}
 }
\ No newline at end of file