The latest update to Pandora brings a couple of new features that users have been wanting for some time now -- lockscreen controls and improved playback display. The former is a very simple (and standard by now) set of controls consisting of play/pause and next track buttons, along with a background of the current song's album art. Inside the app proper, you also now get time elapsed and time remaining for the track along with the progress bar, which is nice.
On the performance side, Pandora claims the latest update improved startup times (something the app has struggled with before) and fixed some random bugs. You can grab a download of the latest update from the Play Store link at the top of this post.