It has never done this in the past , it had a “download and install option” I wanted to go into “about” tab and accidentally hit ”software update“
same here.
i have never allowed automatic updates. and even now, as you also mention, its clearly set as not allowing automatic update (Automatic Update is set in the off position).
behavior before: with Automatic Updates set to off, merely going to Settings/Genera/Software Update only automatically checked to see if an update was available. if one was, then it just indicated an update was available and you needed to overtly start the download.
new behavior: even with Automatic Updates set to off, merely going to Settings/General/Software Update will trigger an available download to be actually start to be downloaded.
in either case, however, to actually
install an update once downloaded, does still require you to overtly click yes to install it (
if you have Automatic Updates set to off).
so, the meaning of "Automatic Updates" as most people understood it to be has changed. now it just means that new updates won't be
installed automatically rather than won't be
downloaded and installed automatically.
i hope apple in this latest implementation has a good algorithm to handle downloads that stop and start during downloads that have once begun and can force a once stopped download to finish the process.
that's why i usually waited until i knew i had time to actually do a complete download all at once.
i also think its probable that the above new behavior is affected by whether or not its connected to Wi-Fi or not.
in my case above, it was connected to Wi-Fi and connected to power.
i cant imagine if only connected to cellular it would start a 1GB download automatically.
you can control this kind of thing in the case of apps (download only on cellular etc) but not apparently for an update to the iOS itself.
so maybe if connected only to cellular it doesn't download it automatically?
same with power connected or not: it would be seriously odd if it allows updates to its operating system to begin downloading while not connected to power.