New Aseprite v1.1.6 is available with bug fixes and some minor improvements!

• Right-click can move layers/frames/cels in the timeline
• Added right-click with Ctrl+click on OS X in some controls (timeline, tabs, text entries)
• Fixed bug ignoring Space bar on Sprite Editor when it’s used immediately after clicking in the Timeline
• Ask for saving each file on exit
• Right-click subtracts a selection area when we use it inside the sprite editor selection
• Added option to include partial tiles in Import Sprite Sheet
• Configuration is saved in ~/Library/Application Support/Aseprite on OS X now
• Added forward compatibility for .ase files with groups
• Added support to load Pixly (.anim) files
• Expand filename wildcards in command line on Windows
• Fixed issues with some convolution matrices after inserting text
• Fixed OS X keyboard modifiers when we switch apps using ⌘Tab (⌘ isn’t kept pressed)

More information in Aseprite blog announcement.