I rely on this app for my computer science at my university. It works fine in 10.8, and I really want to upgrade to 10.9 for the battery and performance improvements alone. However, I can't upgrade if this app doesnt work. Anyone know if this app is working on 10.9? It's really a text editor so I don't think an OS update would break it, but you never know... If someone could test it out, I would greatly appreciate it.