What To KnowChoose Safari from the top menu, and About Safari. The version number will be on the window that pops up.On iOS, go to Settings > General > Software Update. Your iOS version and Safari version are the same. (Example: iOS 11 = Safari 11)
This article explains how to find the version of Safari that you're running on a Mac and an iOS device.
Find the Safari Version Number on a Mac
To determine which version of Safari is installed on a Mac computer:
Go to the dock and select the Safari icon to open the Safari browser.
Choose About Safari under the Safari menu.
A small window appears with the browser version number.
The first number, located before the parenthesis, is the current version of Safari. The longer second number (located inside the parentheses) is the WebKit/Safari Build version. For example, if the dialog box displays Version 11.0.3 (13604.5.6), the Safari version number is 11.0.3.How to update Safari on the Mac
Find the Safari Version Number on an IOS Device
Because Safari is part of the iOS operating system, its version is the same as the current version of iOS that you have.
To see the iOS version currently installed on an iPhone or iPad, follow the instructions below.
Select Software Update. The number that appears at the top of the screen next to iOS is the version number. For example, if your iPhone or iPad is running iOS 11.2.6, then it is running Safari 11. If your device is running iOS 12.1.2, it is running Safari 12, and so on.
Underneath the version number, you'll either see "Your software is up to date" or a prompt to update to the latest version.