PSA: For those of using the QR code methods for Egg Checking, Cloning, etc. The methods have been patched with the latest Nintendo update. If you wish to continue using them you will have to not update your system, but in doing so you also cannot access Pokebank, the Nintendo EShop, and possibly some other things as well.
EDIT: There appear to be mixed results with whether you can still access Pokebank without upgrading to the latest update. I appear to still be able to access Pokebank (from Australia) for the moment but I'll be updating anyway. If you check the current top post on the subreddit /u/svexchange, people there mention being able to access Pokebank before the current update. I would link the post but not sure if I should link an outpost to another site.