After upgrading to LR 5.7 on my iMac OSX 10.10.1 I've discovered that the publish module categories are missing.
"New Photos To Publish, Modified Photos To Republish, Published Photos and Deleted Photos" no longer appear and all photos in any publish module are listed as one big grid. If I add a photo to publish, it appears that LR wants to republish everything! This applies to all modules, even my local hard drive mods. I don't know if I'm missing any new preferences - I never had to do that before for the publish mods. Hopefully this gets resolved quickly
When I check for updates it shows that I am up to date even though I se a 5.7.1 out there.