I just looked at the link that SiddhaFlowers provided and that looks like the technical specs for QuickBooks Enterprise 24.
Now I just went over to this site that was updated by Intuit 2 weeks ago:
https://quickbooks.intuit.com/learn-support/en-us/help-article/product-system-requirements/system-re...
And under Operating Systems they still have server 2012 listed as supported OS's
