Hello all, Recently demoed our 5x8 kids second floor bathroom. Currently it has one receptacle that is tied in with the master bathroom receptacles and then run to a GFCI receptacle in the garage. The lights and fans are on a separate circuit. The only thing we are adding is a recessed light above the shower(with proper trim). I have read current code is separate 20amp circuit run for each bathroom. Does this bathroom need brought up to code or can we still use existing setup? Thanks!