The answers to this question imply that the reminders do not recur... but that's for versions prior to iOS 9.
Much like with newer versions of OSX, iOS 9 will remind you every other day or so to update giving only the options to "update now", "remind me later", "view details". The third option is the only way to avoid "scheduling" a reminder later and it's my go-to option in OSX to shut the reminders off for a bit... but I don't want to stop in the middle of what I'm doing to switch over to the Settings app and then go right back to the app I was actually using.
This is very annoying to me, particularly as I intentionally skip updates. Is there a way to turn this "feature" off?