How long does old iphone stock take to deplete?

[kruseanderson]

I am not due for upgrade until April 2014. Will the iPhone I upgrade too mostly likely be still on iOS 7.0 or newer 7.1?

I understand this is market dependent and many other variables but typically how long does it take to go through the older iOS stock? Is there somewhere or store that is more likely to still have the old iOS in stock come April? Trying to be able to jailbreak after I upgrade.

Moderators if wrong area or better area available please move.

Thanks

 

[willerz2]

Depends on how fast the inventory is pushed out. The more active the store, the more likely you'll receive a device running the latest iOS. You can try running the serial number through iOS Version by Serial Number I haven't tried it on anything newer than an iPhone 5, but it should be able to ID post-iPhone 5 devices to show what iOS it was shipped with

 

[kruseanderson]

Kinda what I figured. I was just hoping someone had noticed a trend of sorts or something.