Doesn't look good...
Originally Posted by libspotify release notes
Version 0.0.8

SPOTIFY_API_VERSION is bumped to 8.

Added support for offline mode.
Users of libspotify can now request playlists to be offline
synchronized just as Spotify's desktop and mobile applications.
For example of how to do this, please see cmd_playlist_offline()
in playlist.c in the spshell example.

Added sp_playlistcontainer_is_loaded() which can be used to
check if a playlistcontainer is loaded. This value will be true
after the container_loaded() callback is invoked.

Added support for spotify:image: linktype. If your application
needs an abstract way to refer to coverarts, artist portraits, etc
this is what you should use.

Add sp_session_user_country() that returns the currently logged in
users registered country. This is the country that should be used
to get toplists localized for the user.

bugfix: LocalTrack URI handling (sp_link) was broken. This has now
been fixed

bufix: libspotify was unable to link on 10.4 and 10.5. This has
now been fixed

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