Fix for linewidth attribute in shapes for AGG backend Fix for ellipse rotation in OpenCv backend Better text rendering for OpenCv backend (loadable fonts) enhancements to the Ruler plugin for reference viewer supports quick loading from astropy NDData (or subclassed) objects Support for scaling fonts on high-dpi displays Fixed a bug where adjusting autocuts parameters in Preferences would crash the Qt backend Fixed a bug that caused windows to disappear when changing workspace to MDI mode under Gtk3 backend Fixed a bug where local plugins were not properly closed when a channel is deleted Fixed a bug in which the ColorMapPlugin canvas was not scaled to the correct size Improvements to synchronous refresh feature to reduce jitter and increase frame rate Fix for navigating certain data cubes with MutltiDim plugin Added new percentage transform and coordinate mapper type (allow placement of objects as a percentage of the window size) Updates to Compass canvas type and Pan plugin Documentation improvements for writing plugins