March 18, 2021—KB5001638 (OS Build 17763.1823) Out-of-band

March 18, 2021—KB5001638 OS Build 17763.1823 Out-of-band Applies To Windows 10, version 1809, all editions Windows Server version 1809 Windows Server 2019, all editions Note 2/16/21 IMPORTANT As part of the end of support for Adobe Flash, KB4577586 is now available as an optional update from...