https://www.theregister.co.uk/2019/09/27/windows_10_1903_increase/

Ad slingers AdDuplex celebrated the impending release of Windows 10 19H2 by reporting that, yup, the 10 May 2019 Update is quietly doing the business for Microsoft.

While still very much a shadow of the glories of the April 2018 Update (aka 1803), which had been plastered over 89.6 per cent of PCs surveyed at the same time last year, the 45.5 per cent of May 2019 Update (aka 1903) installations is an improvement on the disastrous performance of the equally disastrous October 2018 Update (aka 1809) release.