Christopher mentioned over in a thread about the Mirror Universe that Diane Duane's novel Dark Mirror came out only about six months before the DS9 episode "Crossover", which showed a very different version of the Mirror Universe in the 24th Century. Every Trek novelist knows that this is the deal, of course. Their continuity can potentially be overwritten at any time by the shows or movies. But even so, that's a pretty quick turnaround.
Which got me to thinking: Is that a record of some kind? What's the fastest that the novelverse's version of something has been contradicted by filmed Trek? Is it Dark Mirror? Michael Jan Friedman's Starfleet: Year One contradicted by Enterprise? Something in an early novel written before a new TV series started shooting contradicted as the show developed? Something else?
Which got me to thinking: Is that a record of some kind? What's the fastest that the novelverse's version of something has been contradicted by filmed Trek? Is it Dark Mirror? Michael Jan Friedman's Starfleet: Year One contradicted by Enterprise? Something in an early novel written before a new TV series started shooting contradicted as the show developed? Something else?