Today’s Spotify client update (Version 0.3.17 rev 49071) contains a couple of new visible features:
Enable High Bitrate
Select Edit > Preferences to set. For premium subscribers only, tick the Enable High Bitrate option to switch to the high-quality q9 audio stream (where available). This doubles the audio quality to around 320 kbps: perfect for classical music, ambient, trance, or any style with high-production values (or quiet bits).
Custom playlists now feature the playlist name, author (if it’s someone else’s playlist), the number of tracks, and the total playing time at the top of the pane: