Apple iOS Update 10.3 | It Could Erase Your Data                                            

By Shahina Mulk
If you are an Apple user,  this news is very important for you as a little carelessness can result in the lost of all the data stored on your iphone.
The latest iOS update to 10.3, scheduled later this month, could result in the lost of all data stored on iphones. To be on the safer side, it is highly advisable to the Apple users to proceed cautiously and perform a data back up before feeding their iphones with the new update. 

Now, coming to the technical aspect of this update in layman's language, Apple is all set to replace its system file with an another one that lives up to latest computing demands. 

This update would automatically replace Apple's 19 years old HFS+ system with the new Apple Flie System (APFS). However, if during the update process something goes awry,  the data stored on the phone could get erased due to the incompatibility of these two file system. 

Though, users would be able switch back to the former version of iOS, this will require a reformat of the drive, which would delete all files stored on the device.

However,  this does not mean that you should not switch over to the latest iOS as the new Apple File System offers a big improvement over its forerunner, which Apple had been using since its launch on Jan 19, 1998, with Mac OS 8.1.
The Latest iOS Update To 10.3 Can Make You Lose Your Data

HFS+ was developed to replace the Hierarchical File System (HFS) as the primary file system used in Macintosh computers (or other systems running the classic Mac OS). It is also one of the formats used by the iPod digital music player. HFS Plus is also referred to as Mac OS Extended or HFS Extended.
Due to the age of HFS Plus, several features that are currently considered staples of modern file-systems like ZFS, or NTFS are not present in HFS Plus.
Apple File System (AFS) is optimized for flash and solid-state drive storage and features a copy-on-write design that uses I/O coalescing for improved performance.
Apple File System is designed to avoid metadata corruption caused by system crashes. Instead of overwriting existing metadata records in place, it writes entirely new records, points to the new ones and then releases the old ones. This avoids a crash during an update resulting in a corrupted record containing partial old and partial new data. It also avoids having to write the change twice as happens with an existing HFS+ Journaled file system where changes are written first to the journal and then to the Catalog file.
The update will cater to the modern computing demands in a far better way, allowing stronger encryption, better accuracy in time stamps and optimization for solid-state drive storage.
The new operating system is expected to include a host of new features like Find My AirPods, hidden keyboards for iPads and there would be some minor improvements in App Store too.
It is learnt that later on APFS would also be incorporated in Apple's Tvs, computerts and smartwatches. 

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