Backups produced with any 3.x version of MySQL Enterprise Backup can be restored using any higher MySQL Enterprise Backup version.
To restore a MySQL Enterprise Backup 3.6 backup using MySQL Enterprise Backup 3.5, copy the files and
directories from the datadir subdirectory of
the backup into the main backup directory. MySQL Enterprise Backup 3.5 expects the
files to restore to be at the top level of the backup directory.