Updated the "[Task Info](labeling/labeling-editor-interface/#right-hand-side)" panel to show Asset IDs and other information about the task currently being viewed.

Added support for nested classifications for relation objects in PDF. You may now create a relation between two or more PDF area tools, then relate that relation to another annotation or relation present on the PDF.

Changed background of nested classifications for easier recognition of nested levels.

Added [Tree Dropdown classification tool](labeling/labeling-tools/classification-tools/tree-dropdown.md).

Added OCR to context menu (right-click menu) for [PDF area](labeling/labeling-tools/tools/pdf-tool.md) annotations. Right click on a PDF annotation, click on the "OCR" button and the OCR results will be visualized and added within the label.

Updated the visual representation of [group relations](data/importing-and-exporting-annotations/exporting-annotations/ango-export-format/asset/task/relations.md) for PDF area labels.

Updated the way PDF areas are visualized and selected. You now need to double click to select PDF areas.

Added new [audio playback](labeling/labeling-editor-interface/audio-labeling-editor.md) features: selectable play speed and FWD-REW buttons.

Added link to our documentation in the "Help" dialog.