API Changes in Dynamo 4.0.0

• ModelBase.Serialize(XmlDocument, SaveContext) method - No longer marked as obsolete
• ModelBase.Deserialize(XmlElement, SaveContext) method - No longer marked as obsolete

The following code that was marked as obsolete has now been removed

• IPreferences.IsBackgroundPreviewActive property - Use BackgroundPreviews collection instead
• PreferenceSettings.IsBackgroundPreviewActive property - Use BackgroundPreviews collection instead

• PackageManagerClient.PackageContainsBinariesConstant field - Package binary detection now uses the contains_binaries field from the database
• PackageManagerClient.PackageContainsPythonScriptsConstant field - Package Python script detection now uses database fields

• ProtoScript.Runners.HydrogenRunner class - Legacy runner no longer supported
• ProtoScript.Runners.DeuteriumRunner class - Legacy runner no longer supported

• Preloader.LibraryVersion enum - Use System.Version instead to specify geometry library versions
• Preloader.Version property - Use Version2 property instead

• FileSystem.ReadImage(string path, int xSamples, int ySamples) node - use File.FromPath -> Image.ReadFromFile -> Image.Pixels instead
• FileSystem.LoadImageFromPath(string path) node - use File.FromPath -> Image.ReadFromFile instead
• FileSystem.ReadText(string path) node - use File.FromPath -> File.ReadText instead
• FileSystem.WriteImage(string filePath, string fileName, Bitmap image) node - use Image.WriteToFile instead
• FileSystem.ExportToCSV(string filePath, object[][] data) node - use CSV.WriteToFile instead

• String.FromObject(object obj) node - use "String from Object" instead

• Excel.Read(string filePath, string sheetName) node - use File.FromPath -> Excel.ReadFromFile instead

• All PointData nodes
• All SurfaceData nodes
• All VectorData nodes