While the vast majority of users upgrade to iOS 8, certainly not everybody does, so it's good to know that iOS 5 (I didn't check any earlier) also includes the

While the vast majority of users upgrade to iOS 8, certainly not everybody does, so it's good to know that iOS 5 (I didn't check any earlier) also includes the "DST Root CA X3" certificate: https://support.apple.com/en-gb/HT201388 https://support.apple.com/en-gb/HT201388