20H2

The abbreviation 20H2, meaning the second half of 2020 in the Microsoft semester scheme, can refer to multiple Microsoft Windows releases:
 * Windows 10 October 2020 Update (build 19042), released on 20 October 2020
 * Windows Server, version 20H2 (build 19042), released on 20 October 2020
 * Windows as a service
 * Manganese