iOS 11.3.1 reports incorrect user agent string?

Has anyone noticed if their 11.3.1 devices report their version as 11.3 instead in the Safari user agent string?

Example for an iPad updated from 11.2 to 11.3.1:

Mozilla/5.0 (iPad; CPU OS 11_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/11.0 Mobile/15E148 Safari/604.1

Neither the “OS 11_3” nor the “Mobile/15E148” part seem to be right!

Checked my device running iOS 11.3.1 and I have the same issue with user agent as you are seeing. Looks Apple not updated the user agent string properly for iOS 11.3.1.

Thank you for confirming! Earlier today this led to a nasty customer issue for us. Hopefully 11.4 comes out soon.