Ramtin: thanks for the note. Andy is correct here; though, there’s an added degree of complexity based on the fact that the error message you’re seeing — in certain circumstances — appears even when you’re fully up to date. It is an issue we’re aware of and the confusing notice will be removed in an upcoming release, probably 2.0.8 when it comes out next week.
In the interim…so long as you’re running 2.0.7 of The Events Calendar and 2.0.7 of Events Calendar PRO, you should be all set. Let us know if you still have any questions on this.