- NOTE: Support removed for Windows 10 version 1903 and 1909 since Microsoft discontinued support for version 1903 on December 12th, 2020; please use WSUS Offline Update version 12.x for updating Windows 10 version 1909
- December 2020 to January 2021 updates added to 'security only' lists for Windows Server 2008, Windows 7 / Windows Server 2008 R2, Windows Server 2012 and Windows 8.1 / Windows Server 2012 R2 (x86/x64) systems
- Replaced superseded November 2020 Servicing stack update (KB4587735) by January 2021 Servicing stack update (KB4598480) for Windows 10 Version 1809 and Windows Server 2019 (Thanks to "aker")
- Added Update for the removal of Adobe Flash Player (KB4577586)