Map caches that you created in ArcGIS Server 10.0 and previous versions can be used in later versions.

 

To migrate a map cache please follow the steps from the ESRI Help (subchapter Migrating map and globe caches):

https://resources.arcgis.com/en/help/main/10.2/index.html#//0154000002p0000000

 

Note: To view the status of migrated caches please use the tool in ArcGIS:

Toolbox Tool - Server Tools - Caching - Manage Map Server Cache Status.