cant download whatsapp cos i dont have iOS 6.1.6
while i was chatting in whatsapp a message appeared in my screan and asked me to download the latest verison... i tryed to download but then asked me for a software update 6.1.6 ... i have iPhone 3gs and the 5.1.1 version on my phone... i dont know if I update the new sofrware version , and than download the new whatsapp , than in my new whatsapp are my chat history and photos still there ? write to me back soon pls... and sorry for my english xD