Windows 10 Pro Redstone 5, 1809 Build 17763.348 X64 incl. Office 2019 en-US March 2019...
Sources:
17763.107.101029-1455.RS5_RELEASE_SVC_REFRESH_CLIENTCONSUMER_OEMRET_X64FRE_EN-US
en_office_professional_plus_2019_x86
Whats New:
Servicing Stack Update: KB4470788
CumulativeUpdate: KB4482887
.NET Framework 3.5 and 4.7.2: KB4486553
Flash Player Security Update: KB4487038
Office 2019 ProPlus VL 32bit
Editions Included:
Windows 10 Pro incl Office 2019
Activated by OnlineKMS