New Tone Mapping method designed to give realistic looking results while preserving details in highlight and shadow. It is called Contrast Optimizer and comes with the 'Balanced' and 'Vibrant' Presets.
Finishing Touch step to add Contrast or Sharpening before saving.
Back button to return to the Adjust & Preview step and apply other settings.
Preview checkbox in the Adjust & Preview step to toggle between the original and the image with settings applied.
Option in Preferences to refresh the Preview continuously as slider moves.
...See Full Release Notes