The OES 2015 SP1 Migration Tool has a plug-in architecture and is made up of Linux command line utilities with a GUI wrapper.
You can migrate iFolder 3.2 and iFolder 2.x to iFolder 3.9 or later versions. Migration can be done either through the GUI Migration Tool or through the command line utilities.
To get started with migration, see Overview of the Migration Tools
in the OES 2015: Migration Tool Administration Guide.
For information on iFolder Migration, Upgrade and Coexistence see Migrating iFolder to OES 2015
in the OES 2015: Migration Tool Administration Guide