The most relevant change is Law 16C2 (Law 16D2 in the 2007 Laws Of Duplicate Bridge), which defines information gained from either side's legal withdrawal of a card as unauthorized for the offending side. (Note: although the revoking side may correct its revoke, a revoke has nevertheless occurred and therefore there "is" an "offending side.") It also states that "A player of the offending side may not choose from among logical alternative actions one that could demonstrably have been suggested over another by the unauthorized information." In other words, even if the coup is executed inadvertently, the declarer may not take advantage of knowing the position of the queen; if he does so, the tournament director may adjust the result accordingly.