we have a Sandbox test environment running version 14.2 with SQL Server 2014.
When I run the pre-install checker for 15.1, one of the errors says,
"MSSQL Database cannot be 2014 when upgrading from pre-14.3 release. Please refer to the Product Architecture Stack (PAS) for supported database versions."
Does this mean that we'd need to upgrade to version 14.3 first, and then go to 15.1?
Another 15.1 question, we have other 14.2 environments (Dev, Stage and Production) which are currently SQL Server 2008 and have Windows Server 2008 R2 O/S.
For 15.1, do these servers need to have Windows Server 2012 R2 O/S, as well as SQL Server 2012?