I have Eclipse (Kepler) installed on OS X and updated recently to Maverick. Since then I didn\'t start Eclipse. Yesterday I did and it told me that there are update available. I
I've seen this on Windows 7, after a recent update to Eclipse Kepler and PyDev 3.0.x. The PyDev site states that the latest PyDev requires Java 7. If you don't have Java 7, use PyDev 2. (http://pydev.org/, under the "Release 3.0" title"). I'm using Java 6 to launch Eclipse.
I would check the versions of Java and PyDev you're running.