10 Things to Know About the iPhone 4s iOS 9 Update

iOS 9.1 Release Date for iPhone 4s

Don't expect the iPhone 4s iOS 9.1 update to land in September. 

Apple hasn't confirmed anything but rumor has it, the update is going to tie in with the iPad Pro release in November. So it's probably going to be either October or November. Apple's iOS 8.1 update landed in October last year. 

If Apple doesn't host a media event in October, and it probably won't, we wouldn't expect the company to outline an iOS 9.1 release date ahead of time.