April 21, 2020—KB4550945 (OS Builds 18362.815 and 18363.815)

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2020-02 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows Server 2019 (1903) for x64 (KB4537572)

2020-02 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows Server 2019 1903 for x64 KB4537572...