- Update to 1.5.0:
* Unified Wang and Terrain tools (backwards incompatible change!)
* Added support for a per-layer parallax scrolling factor (#2951[1])
* Added export to GameMaker Studio 2.3 (#1642[2])
* Added option to change object selection behavior (#2865[3])
* Added Monospace option to the multi-line text editor
* Added option to auto-scroll on middle click
* Added smooth scrolling option for arrow keys
* Added a 'Convert to Polygon' action for rectangle objects
* Added support for drawing with a blob tileset
* Added 'Duplicate Terrain Set' action
* Added Terrain Set type (Corner, Edge or Mixed)
* Added support for rotating and flipping Terrain tiles (by Christof Petig, #2912[4])
* Added support for exporting to RPTools MapTool[5] RpMap files (by Christof Petig, #2926[6])
* Added Ctrl+Shift to toggle Snap to Fine Grid (by sverx, #2895[7])
* Eraser: Added Shift to erase on all layers (by Michael Aganier, #2897[8])
* Automatically add .world extension to new World files
* Shape Fill Tool now displays the size of the current shape (#2808[9])
* Tile Collision Editor: Added action to add an auto-detected bounding box collision rectangle (by Robin Macharg, #1960[10])
* Tile Collision Editor: Added context menu action to copy selected collision objects to all other selected tiles (by Robin Macharg, #1960[10])
* Tilesets view: Added "Edit Tileset" action to tab context menu
* Tilesets view: Added "Add External Tileset" action to tilesets menu
* Scripting: Added initial API for creating and modifying Terrain Sets
* Scripting: Added API for working with images (#2787[11])
* Scripting: Added API for launching other processes (#2783[12])
* Scripting: Added MapView.center property
* Scripting: Added missing Layer.id and Layer.parentLayer properties
* Scripting: Enable extending most context menus
* Scripting: Fixed reset of file formats on script reload (#2911[13])
* Scripting: Fixed missing GroupLayer and ImageLayer constructors