I believe they are still the most up to date ones. yes, though please correct me if I'm wrong on that.
Also on that note, any non-codex units (including flyers) must always use the most up to date rules. This is important because there are a number of units that have had several rules prints.
As usual, you must also bring along the relevant rules you need for your army... So, if you wanted to bring a flyer for example you may need to bring the rules publication (or print out), the apocalypse rules for flyers as well as any associated FAQ.
If in doubt of what book has the most up to date rules for a unit you want to use then ask here.
also poppy... everything loses distance, but consider it as being even more difficult to pinpoint your target as at those distances you can't even see where your laser dot is!!
As mentioned, I doubt if anyone is even bringing along flyers anyway... its not something you see very often mostly because the flyers themselves tend to be prohibitively expensive for what they bring, and your army has to generally be tailored specifically to fit them in for best effect.