dunno think same like AL 3.9 and NG 3.9
EU Gameforge UptToDate Client or NA downgraded 3.7
still downloading - will post if I know more!
ok pack contains:
AL 3.9 with geo files
4.0 Maps, NpCs, mobs,.... needed to copy into your 3.7/3.9 Client to use them!
So: still client 3.9 but with additional data which allows you to go to the new 4.0 areas