how to update Safari

It is important to know that Safari is installed as part of the operating system and it normally it cannot be individually updated. Safari is periodically updated when the computer's operating system (OS) is updated or upgraded. Finally, even if you are able to update Safari, there is no guarantee that it will be compatible with every web site. Or you can use another browser that does work such as Firefox or Chrome. They can be individually updated as needed. This is why many of us have more than one browser installed.

I think I need to update safari on IOS