I have SQL Server 2008 R2. I installed SQL Server 2014 with the option:
Upgrade from SQL Server 2005, SQL Server 2008, SQL Server 2008 R2 or SQL Server 2012
and the process ended correctly.
But when running on localhost:
I still have:
Microsoft SQL Server 2008 R2 (SP2) - 10.50.4042.0 (X64)
Sorry if the question is basic but I am very lost at the moment.