Release Dates - W2016 October 2019 (initial Hyper-V: Jun 08)
Windows Server 2019 and System Center 2019 were released in Oct 2018. Windows Server 2016 and System Center 2016 were released in October 2016. Windows Server 2012 R2 in concunction with System Center 2012 R2 were released in Oct 2013.Windows Server 2012 released in Sep 2012, System Center 2012: April 2012 but SP1 was required to manage Server 2012 environments (release Jan 2013); The initial Hyper-V code was released as beta version with the GA version of Windows Server 2008 in early 2008, it GA-ed (through Windows Updates) in June followed by the release the management app System Center Virtual Machine Manager (SCVMM) in Sept and the standalone Hyper-V Server version in October 2008. The R2 release of Hyper-V became available in August 2009. SP1 was finalised in Feb 2011 (after a public beta in H2/2010)
In addition to System Center, now Windows Server is followed by Windows Admin Center which is a new web-based management tool for Windows Server.