Esri announces the release of ArcGIS 10.2.1, which includes stability enhancements and improved functionality for the following ArcGIS products: ArcGIS for Desktop, ArcGIS for Server, ArcGIS Engine, Location Analytics (Business Analyst (BA) Desktop, BA Server), Portal for ArcGIS, and ArcGIS for Desktop and Server Extensions (Aviation, Maritime, Data Reviewer, Workflow Manager, Roads and Highways, and GeoEvent Processor).
For more information, please refer to ArcGIS Help: What’s new in ArcGIS 10.2.1.