So, it's been some time since I've jailbroken my iPhone and my first time in a long time is 8.3. I want to update to 8.4 and jailbreak that version, but I'm afraid I'll lose what I've got on it so far. I don' have many tweaks installed except for ppsspp, which is really the only one I use all the time. Is there any way to jailbreak my device without losing everything I have that relates to cydia? Or should I just email myself the stuff related to ppsspp like the game saves in case I lose it when the phone wipes everything when I update, or is there a method to not lose anything when updating to 8.4?