Here are the release notes:

Retina Display Support

  • Enable it in the Preferences
  • Leave it off for higher framerates
  • Works with mixed monitor setups

New Mouse Options

  • Copy on select
  • Paste with the right or middle mouse button
  • Enable these features in the Terminal section of the preferences

Visual Improvements

  • Glow effect looks much more realistic
  • Noise and retrace effects don’t go outside the picture area
  • Transparency works in Low rendering mode
  • Minimal rendering mode text is sharp
  • Fixed a bug that was causing a slight flash when switching windows