Safari latest version
iPhone 6s, iOS 10.1
If your iPhone is updated to the newest software Safari will be updated with it. The built in apps are updated with the iOS and not separately
If your iPhone is updated to the newest software Safari will be updated with it. The built in apps are updated with the iOS and not separately
Click on the App Store icon and click on Updates.
You can also click on the Safari menu (by the Apple logo at the top left of your screen) and choose 'About Safari'. You can compare the version you have to Apple's latest Safari version.
Get the latest version of Safari for your Mac - Apple Support
Safari latest version