Michael Tasi in a blog post today pointed out a change in the toggle for iOS and iPadOS Automatic Updates that I was unaware of. Before 13.6, there was a single toggle to turn Automatic Updates on or off. I always have it turned off.
In 13.6 there are new toggles for Customizing Automatic Updates
You can now decide whether or not your iPhone or iPad can automatically download iOS updates when connected to WiFi, and when those updates are installed. There’s a Download iOS Updates toggle for turning on automatic downloads over WiFi and an Install iOS Updates toggle for installing software updates overnight as an iPhone charges.
As I mentioned, above I always have automatic OS updates off on all my devices. I like to wait for a few days to make sure there are no issues with the update before I install it. And yes, we all know issues do happen.
Unfortunately for me, I ran into the same problem as Jeff Johnson:
PSA: If you previously had iOS and iPadOS Automatic Updates turned off you’ll want to take a minute and review your Automatic Update setting and adjust it accordingly.