This update adds the following...
Scores are now uploaded the the Steam Leaderboards! There is a leaderboard for each mission and skill level. You can cycle through the different leaderboards using the left and right buttons next to the leaderboard display so that you can view..
Local Top 10 Scores
World Top 10 Scores
Your world leaderboard score as well as the scores around your score so you can see your current ranking.
Good Hunting! ːsteamsunnyː