both versions:
- added quick mask creating (Revel/Hide All, Reveal/Hide Selection) - available in top menu and in Layers view
- added option to disable Autosaving and change Autosave Period
- added possibility to revert to previous document version (iOS: in Document Browser, macOS: File>Revert To)
- added Transform Selection feature (Select>Transform Selection)
- added Pattern filter (Filter>Render>Pattern)
- added option to move text location when editing/creating a Text layer
- added exporting to PDF
- added opening GIF images
- added support of new values added in the most recent ABR and TPL files
- added option to clip layer thumbnails to image bounds or make them square
- added 'Lock Transparency' in Edit>Color Fill, Edit>Pattern Fill and Gradient Fill tool
- added New/Add/Subtract/Intersect options to Alpha To Selection function (in top menu)
- added Hard Edge option in some select tools
- added "+" icon in Brush/Color/Gradient/Pattern editors to easily add edited item or overwrite selected item
- improved Wet Paint tool - added option to disable auto cleaning and manually load canvas into brush, and added 'Mixer' brush in 'Wet Painting' allowing to use 'mixer brush technique'
- now Eraser tool uses a separate color. Changing it does not change color in other tools
- optimized ABR/TPL import - in some cases it is even 10x faster now, you can re-import already imported files to make them loading/saving faster and decrease brush file size
- 'Natural Pencil' brush replaced with 'Natural Pencil HB' and 'Natural Pencil 3B'
- dragged guidelines now snap to image/layer/selection bounds
- fixed Polar Coordinates filter preview
- Aux Stamp and Wetness sections in Brush Editor are now greyed out for tools not using aux stamp/wetness settings
- few other small improvements, optimizations and fixes
iOS:
- decreased painting lags
- added a cursor (disabled by default)
- added drawing offset option
- added auto hiding of popovers (you can start painting when popover is still open), no need to close popover before opening another one
- added option to adjust Pencil stylus pressure
- added option to simulate stylus pressure with 3D touch on iPhones with 3D touch supported
- added textfield to set document Name when creating new empty document
- added option to adjust Eyedropper offset in preferences
- added shortcut support when using iPad Keyboard (list of shortcuts available in Artstudio>Get Started)
- it is now possible to delete items in Document Browser even if it is open
- few fixes when using iPad with keyboard
macOS:
- added info about tool's key shortucts - in bottom status bar