On my server, I have SQL Server 2008 R2 Developer Edition installed, and setup don't want to upgrade it to SQL Server 2012 Express.
Does SQL Server 2012 Developer Edition exist?
Questions on Server Fault are expected to relate to professional server, networking, or related infrastructure administration within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.
It exists at least on the MSDN download site. Also, according to the SQL Server 2012 Licensing FAQ, “Developer, Express and Compact Editions will also continue to be distributed without licensing or pricing changes”.