The system requirements for the database server list the following operating systems:
Server 2012 Standard Edition R2
Server 2016 Standard or Data Center Edition
Server 2019 Standard
Is the omission of Server 2012 Data Center R2 intentional?
If I remember correctly that particular version: server 2012 Data Center R2 wasn't supported in earlier versions
They added support for the newest server coming out at the time which was the 2016
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