Win10 gets a relatively light mix of fixes: neowin[.]net/news/microsoft-releases-windows-10-build-18363657-177631039---heres-whats-new
Win10 2004 -- the Insider release that's expected to be the Spring update -- has an update too: neowin[.]net/news/microsoft-releases-windows-10-build-1904184-to-the-slow-ring
Win8 gets a few fixes: neowin[.]net/news/microsoft-releases-windows-10-build-1904184-to-the-slow-ring
Not to be left out, Win7 has an update in the form of the Malicious Software Removal Tool, and if you didn't install the update earlier in the week, mainly to fix a wallpaper bug, that will show up in Windows Update too.