코스모스팜 마이그레이션

구매예정인데요 제가 지금 백업파일만 가지고 있어서 문의드립니다.
홈피를 오래동안 사용을 안해서 기억이 가물한데...

* "XpressEngine (XE)" is free software; you can redistribute it and/or \n
* modify it under the terms of the GNU Lesser General Public \n
* License as published by the Free Software Foundation; either \n
* version 2.1 of the License, or (at your option) any later version. \n
* \n
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* \n
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*

index.php에 이렇게 써있고 하단에 Powered by XE 라고 써있으면 xe3가 아니니
마이그레이션이 가능한 거겠죠??
1년 라이센스 구매하려 하는데 그거 구매하면 마이그레이션을 따로 살 필요가 없는 거죠??