Apple only released iOS 9 on 16th of September. But, looks like they have made it a bit of a habit of not getting their software updates right. We saw with iOS 8 too that Apple had a couple of major bugs in there which needed pretty much immediate fix via an OTA update, the Apple OS 2 was in fact delayed almost an entire week because of last minute glitches and bugs, so what has happened with iOS 9?
Looks like, there is nothing major issue resolving this time around and is more of a bug fix, at least that is what Apple is admitting in the release notes, so there might be a security patch that Apple wants to put, against something that is atleast not out in the media yet.
For those of you who really want to know what iOS 9.0.1 brings, here are the changes directly from Apple:
This update contains bug fixes including:
Fixes an issue where some users could not complete setup assistant after updating
Fixes an issue where sometimes alarms and timers could fail to play
Fixes an issue in Safari and Photos where pausing video could cause the paused frame to appear distorted
Fixes an issue where some users with a custom APN setup via a profile would lose cellular data
For information on the security content of this update, please visit this website:
You can go to the Software Updates in Settings > General on your iPhone or iPad to be able to download iOS 9.0.1.