• The viewer timeline can now display information as timecode instead of frames (see TC/TF choice next to fps below the timeline)
• Disabled Merge nodes (and other nodes with input A and B) now always pass-thru the B input. Preferences should never affect the render results.
• Shuffle now passes through B by default, and has a new toggle parameter "setGBAFromR" to disable automatically setting G B and A from R.
• Grade: Add "Reverse" option to apply the inverse function. Usage: clone or copy-paste a Grade node, insert it downstream of the original node, and check "Reverse" in the downstream Grade.
• Fix RunScript (the bugs were in ReadOIIO and Natron), and better document it.
• GIF format is now read and written by ReadFFmpeg (most GIFs these days are animated).