one is for 1909 and the other is for 1903. October 22, 2019-KB4522742 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10, version 1909 and Windows Server, version 1909 October 24, 2019—KB4522355 (OS Build 18362.449)
All are for both. Look at catalog: 1903 and later. DotnetCU actually = kb4519573 the articles keep up the scam of 2 separate kb's.
https://forums.mydigitallife.net/th...pc-19h1-2-release.79259/page-282#post-1551877 Look at the 2 different kb's for dotnetcu in WU but both are the exact same update.
Added UUP links for the autopilot update (for those who think they need them): https://forums.mydigitallife.net/threads/windows-10-hotfix-repository.57050/page-467#post-1556091