Apple roll out first update to iOS 11.0 barely a week after release

Barely a week after release of iOS 11.0 Apple of California on 28th September issued a key update called iOS 11.0.1 on 26th September 2017.
According to Apple iOS 11.0.1 includes bug fixes and improvements for your iPhone or iPad. The update is applicable to iPhone 5s and later, iPad Air and later and iPod touch 6th generation.
iOS 11 update made improvements to functionality and experience a iPad or iPhone user is subjected to.
iOS 11.0.1 security updates
Bluetooth
The update addressed a privacy issue existed in the handling of contact cards whereby the application could access restricted files.
Keyboard Suggestions
iOS keyboard was found to cache sensitive information. Issue has been fixed by the update.
Mail Drafts
Mail handling has been improved to prevent a privileged