hi,im on jailbreak ios 8.3 on my new iphone 6 plus,ive never updated the iphone since it came out the box 2 weeks ago,my question is if i update to ios 9 when it arrives i know i will lose the jailbreak but can i just backup my iphone with the apps and stuff that are already on it and if the ios 9 jailbreak does come out can i just restore them back on with the backup from ios 8.3 or do i need to put everything back on from scratch ?