Chief among the security enhancements in iOS 7.1.1 include a fix to “Secure Transport." “Secure Transport” prevents hackers from capturing or interfering with data during an SSL connection. This bug is unrelated to the “Heartbleed” bug.
iOS 7.1.1 improves the virtual keyboard's responsiveness. Also, iOS 7.1.1 fixes a potential conflict between "VoiceOver" functionality and Bluetooth connectivity.
This free iOS 7.1.1 update also addresses the issue of “fingerprint fade” experienced by iPhone 5s users and further improves the performance of the fingerprint sensor called “Touch ID." Ever since "Touch ID" was released on iPhone 5s, Apple has worked tirelessly to improve its performance. Observers expect “Touch ID” to be one of the new features of the upcoming iPad Air 2.
iOS 7.1.1 can be downloaded by tapping “Settings” > “General” > “Software Update” > “Download and Install”. If you have Passcode Lock enabled on your iPad or iPhone, tapping on “Download and Install” brings up the Passcode Lock screen. After entering your passcode, just follow the prompts to download the free iOS 7.1.1 update. Be sure your iPad, iPhone or iPod touch is connected to a power outlet before starting this download.
Some users report that they are unable to download this update because they receive the message “Software Update is not available at this time. Try again later.” This information is similar to the information received during the launch of iOS 7.0. Whenever an iOS update is launched most Apple users immediately move to download it, which sometimes causes this error. For example, iOS 7.0 has been downloaded for 87 percent of all iPad, iPhone and iPod touch devices.
This new free iOS update follows Apple's release of iOS 7.1 last month, which introduced lots of new features and bug fixes. New features included a new way to communicate with “Siri” (by holding down the Home button), an easier way to subscribe to “iTunes Match," the syncing of “FaceTime” calls across iDevices, more Calendar and Accessibility options and compatibility with “Car Play."
The next major free update to iOS will probably be iOS 8.0. iOS 8 will be revealed on June 2 at Apple's World Wide Developers Conference (WWDC 2014). This date is highly anticipated because the upcoming iOS 8.0, will reveal more about the capabilities of iPad Air 2, iPad mini and iPhone 6.