.NET Framework April 2, 2019 Cumulative Update for Windows 10 version 1809 and Windows Server 2019

Tara Overfield

Today, we released the March 2019 Update for Windows 10 version 1809 and Windows Server 2019.

Quality and Reliability

This release contains the following quality and reliability improvements.


    • Addresses an issue in which the Framework throws an exception if the year in the parsed date is greater than or equal to the start year of the next era. Now, the framework will not throw such exception. [603100]
    • Updates Japanese Era dates that are formatted for the first year in an era and for which the format pattern uses the “y年” characters. The format of the year together with the symbol “元” is supported instead of using year number 1. Also, formatting day numbers that include “元” is supported. [646179]
    • Allows the output of Gannen characters in Japanese Era formatting of first year dates regardless of whether the format pattern includes single quotation marks around the “年” character. [777182]

Getting the Update

The Update is available via Windows Server Update Services and Microsoft Update Catalog.

Microsoft Update Catalog

You can get the update via the Microsoft Update Catalog. The following table is for Windows 10 version 1809 and Windows Server 2019.

Product Version Update KB
Windows 10 1809 (October 2018 Update) Windows Server 2019 .NET Framework 3.5, 4.7.2 Catalog 4489192

Previous Monthly Rollups

The last few .NET Framework Monthly updates are listed below for your convenience:


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