Extra accessories in FT Charlie Kit

I'm about to start on my FT Charlie speed build kit and I noticed there are some extra items in the accessory bag. Specifically a 1x10" strip of pine, some extra piano wire (thicker than the ones used for the push rods, and some some plastic tubes. Has the model been enhanced since the build video came out several years ago or is the accessory bag generic and contains things used in other models?