Okay, just installed Mavericks. I run a boatload of programs. Here are the ones not working...
1. EyeTV. Anyone using any of the Elgato EyeTV products will find that the viewer crashes. The device also disconnects itself.
2. iDeskCal will not display calendars or appointments on the desktop despite the fact the program displays an icon across the top toolbar indicating it is running.
3. Fantastical continually asks for access to my calendars/contacts every time I boot.
4. Had SecondBar installed for my second monitor. I don't need it anymore. I removed it from my User Accounts Login, but for some reason it still attempts to load when I boot.
5. DateLine gives an error message at boot up, but will continue to run if you press CONTINUE when that message appears.
6. iStat Menus does work, though every time I boot I get the preferences screen even though I disabled that screen (put it on hide) in my User Accounts login list.
7. TotalFinder does not work. I removed it. Don't need it anymore with new tabs on Finder
What does work...
Newsbar, PopClip and TextExpander (as long as you give it Accessibility access), Alfred, DefaultFolderX, Digital Power Station, Hardware Growler, OmniGrowl, Crossover, Photoshop, Little Snitch (with update), Yahoo Widgets (for those who still have them), GeekTools, Zipline, WeatherMan, DragThing, Caffeine, Capster, Toast Titanium,
SnapXPro (though file saving is a bit funky now), ScanSnap Pro.