I would like to buy a workshop or technical manual for my Defender 90 2015 but I see all the manuals I see on ebay (or elsewhere [so far]) that I have found are dated up to Haynes manuals seem to go up to 2008. Would this cover my 2015 defender? Or is there a more up to date manual somewhere? This is really just for interest and perhaps the odd thing that might go wrong so I can develop more of an understanding of the vehicle rather than me doing anything major on it myself.