Version 4

Here's what you need to know regarding the decision, including what actions you need to take to prepare.

In a surprise decision by Microsoft, Windows 11 does not have an associated User-Agent string and can only be detected with User-Agent Client Hints. It’s interesting that Microsoft has decided to implement an experimental feature that has yet to go through the Web standards process.

These HTTP header requests have been introduced within Chromium browsers to replace the User-Agent. While we don’t think this is a good idea, we need to upgrade our device detection capabilities to include support for this feature. This blog covers any questions you may have on User-Agent Client Hints support within our device detection.

Google’s plans to replace the User-Agent string with User Agent-Client Hints are not ideal, but we have to prepare our real-time data services accordingly. Version 4.3 of our API packages now includes support for User-Agent Client Hints.

We have some exciting product news!

It’s been a busy start to 2020 for 51Degrees, not even a global pandemic stopping us from launching version 4 of our device detection, writing brand new documentation, creating new HASH datafiles and completely redesigning our website.