And a warning: bear in mind that if you do change your mind afterwards, it may be too late to go back.
We discuss the methods used to achieve this in our article How to remove i OS 10 and go back to i OS 9, but they are dependent on Apple still 'signing' the old version...
Alongside general performance enhancements and security updates, i OS brings with it a number of cool features.These include a completely overhauled Messages app, refinements to Apple Music, Apple Maps, the introduction of Memories to the Photo app, and some other nips and tucks across the system.Check out i OS 10 vs i OS 9 for a direct comparison between i OS 10 and its predecessor.The i OS 10.3 update added a few more features to the table: upgrade to i OS 10?i OS 10 launched on 13 September 2016, bringing with it a number of new additions and refinements; since then Apple has launched a series of smaller upgrades with patches and minor new features.
All have been made available to i Pad & i Phone users for free (assuming your device is a recent enough model to qualify).
It appears that the conversion to the new Apple File System (APFS) included in i OS 10.3 is more efficient in how it formats volume storage.
APFS was designed specifically to take advantage of modern "solid state" storage technology (as opposed to the spinning magnetic disk hard drives of the era when Apple's previous HFS file system was developed).
It's always extremely hard (if not impossible) to go back to the previous version afterwards, so be sure you want to do this before starting the upgrade process.
So you'll probably be stuck with the new OS if you update.
Assuming that your device is new enough to make the upgrade, is it a good idea to update i OS on your i Phone or i Pad and install i OS 10?