How do I update Safari

On all Apple products the way to upgrade (not update) Safari is to upgrade your operating system. On the iPhone, that is the iOS. An upgrade is when you install a newer iOS. An update is to install a newer version of the same operating system. The reason for this is because Safari is installed as part of the operating system. It cannot normally be individually installed. Incidentally, a newer version of Safari does not always work with every web site. Sometimes it is necessary to install another browser such as Firefox or Chrome to use with certain web sites. They are individually installed and upgraded.

So, the latest Safari version is installed when you upgrade the iOS on your iPhone.

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