Few key improvements since 0.4.5.
Changing waveform height.
Displaying media information on waveform
Check out the Preferences and configure what you want to see. There are plenty of options.
Displaying time when hovering waveform with mouse
When you want to locate the track is on the hard drive, there is a new menu item in the playlist.
It will open your file manager and select the file for you. Works great for Windows Explorer, OS X Finder and Gnome Nautilus. KDE Dolphin is on my todo list :)
“Open With Nulloy” in Finder
And last but not least. New Metro skin