It is clear that the demand for mobile apps today has escalated in all businesses across the world. Android and iOS are the two major platforms where applications are running at a greater pace. IOS application development has got a third most important update of 11.0.3 which has not given major changes or features but has done many improvements. This update will be compatible with iPhone 5 and above models, IPad mini 2 and above models. Notifications are already sent to almost all devices, but if somehow customers have not received, they can directly download by going into settings part of the smartphone and can check for latest software available. It is very necessary to keep a backup of your all important information and details because sometimes it happens that with the update installing, it may fail to install. The update which Apple has given, its size may vary from device to device. This latest update of iOS 11.0.3 mainly resolves the issues related to audio and haptic feedback for iPhone 7 and iPhone 7 Plus. It has also even resolved the issues related to displaying problem with iPhone 6s. This also goes for the iPhone devices which were not serviced with genuine parts. Now, if you are using iOS 10 then you can see lots of new things but if you are upgrading from iOS 11 to iOS 11.0.3 then you will not be able to find many changes as even the security features will going to remain the same as before. With this new update of iOS 11.0.3, not many changes have been noticed but as expected Apple will give another update to iOS devices to improve some of the features that are not supported with some newly developed one.