Hot fix contains:
New: Reading/writing 3D effects. See Shape.ThreeDFormat property and ThreeDFormat class.
New: Rendering 3D effects on thumbnails and svg.
New: Changing polylines. See Polyline.Path property.
New: Creating new polylines on a slide or inside GroupShape from scratch. See Shapes.AddPolyline method.
New: Changing scheme colors on a slide or master slide. See Slide.SetSchemeColor method.
Fixed: Infinite loop on slide cloning when search master slide.