I am currently running the most recent version of the Mavericks Developer preview. After the most recent update, I got prompted by the app store to download an update for Keynote 5.3 from December of last year. This never appeared there before, and I already have 5.3 according to the "about" section of the app itself. You can view what I am referring to in the attached screen caps. Any help would be greatly appreciated. Thanks!
-Mike
-Mike