Release Notes: This release introduces waveform layers and multi-channel oscilloscope widgets for rendering massive amounts of data in real-time, with data sampled asynchronously to rendering. The oscilloscope widget can be used for plotting purposes as well. The widget supports graph papers, annotated axes, auto- and manual scaling, visual zooming, zooming undo/redo buffers, and mouse hovering. All widgets support rendering of snapshots on the surfaces supported by Cairo, e.g. into a PDF or SVG file. The library is fully compatible with the GtkAda versions 2.14, 2.18, and 2.24.