Windows version is detected incompletely. The correct OS Windows version is 10.0.17134.137. However, the browserProviderPool.getBrowserInfo method from the testcafe-browser-tools package detects version as 10.0.0:


The proper version is the following one:

The version is determined correctly as 10.0.17134.137.
Run any test case on Windows 10 Version 1803 Build 17134.137.
It's not a bug. TestCafe displays the version which useragent module retrieves from browser's navigator.useragent property.
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Most helpful comment
It's not a bug. TestCafe displays the version which useragent module retrieves from browser's
navigator.useragentproperty.