Without trawling through every page on the Internet, I can find no proof that Help For Heroes Spitfire is a new beer. It is however described as such in various places.
The beer appears just to be the regualr Spitfire but sold in 250 ml bottles. There is no doubt that Help For Heroes is a worthy cause but there does appear to be some deception here.
Shepherd Neame are such a huge brewery that they could and should do better than this. If anybody can show me that I am incorrect, and that this is indeed a new beer then I would be glad to be proven wrong.