Solved! Go to Solution.
Migration to ArcGIS 10.2.1 for Server
Upgrading to ArcGIS for Desktop 10.2.1
Do you have major issues that would require this upgrade? It seems that there are only minor changes and it would probably make more sense when there are bigger changes (enhancements) with the software.
FYI..
ArcGIS 10.2.1 Issues Addressed List