Windows Server 2019 build 17643

Windows Server 2019 build 17643 is an unleaked build of Windows Server 2019, which was supposedly uploaded to the Chinese website BetaWorld on 17 August 2021 for Datacenter Core SKU, ISO image for this build Datacenter SKU supposedly uploaded to the Chinese website BetaWorld on 19 October 2021, but at the moment this cannot be confirmed or refuted as it is not publicly available.