Cycles : Added support for custom attributes with either a
render:prefix. These can be authored in Gaffer and then read at render time using Cycle’s attribute shader.
Catalogue : Fixed crashes when using the ↑ or ↓ keys immediately after adding or removing a column.
PathListingWidget : Fixed bug tracking the last selected path, which could cause crashes if the path was deleted or the columns were changed.
Image Viewer : Fixed dragging a color from the image view using a context with the wrong time, and an error that could show up when deleting the currently viewed image.
Fixed background shader bug that could cause a crash, or cause the initial render in the Cycles viewport to be blank.
Fixed light bug that triggered an assertion in Cycles debug builds.