Board Thread:Sly Cooper series discussion/@comment-24001319-20140501170224/@comment-1845428-20140508195143

An unknown amount of time has passed between Sly 3 and Sly 4, and Sanzaru has specifically said that they did not want to make the decision as to how much time has passed between the games. Personally, I think that a year or two tops has passed, but I have no basis for this assumption other than I don't think Sly could resist his thieving urges for much longer than that.

-Teenbat