What's the latest version of Safari?
There are two slightly different versions of Safari.
|Safari on MacOS (Laptops and Desktops)||11.1.2|
|Safari on iOS (iPhone, iPad and iPod)||11.1|
Do you need to know what version of Safari do I have?
Safari on MacOS
Safari comes installed on all Apple computers, so you shouldn't need to download it. To make sure that it's up to date, use the Software Update feature by clicking the Apple logo in the very top left of the screen, choosing "Software Update" and following the instructions.
Apple used to provide a few different versions which were all the "latest version" for that platform; eg Maverick's version was the Safari 7 branch, Yosemite's version was the Safari 8 branch but they were all the "latest versions"... As of September 2015, Apple now seem to be keeping the one branch (Safari 9) across the few most recent versions of OS X.
Safari on Windows
Apple don't make or support Safari for Windows any more. The last version of Safari for Windows was 5.17 (released in May 2012). Apple no longer provide it for downloading. There are much more up to date browsers for Windows, including Internet Explorer, Chrome, Firefox and Opera.
Safari on iOS
Apple make Safari for iPhones, iPads and iPod, and similar to MacOS, it comes installed by default. You should keep your device's copy of iOS up to date, because doing this will ensure that Safari is up to date as well.