Its Glu shock again and Glu released tier 39 also along with tier 38. Its first time 2 tiers are released together.
Check below post for detail.http://ggnbb.glu.com/showthread.php?239197-BSONI-The-Player&p=549310&posted=1#post549310
Rest, I'll leave for scorpion to fill tier detail as usual he is doing for each tier. I just started this thread for you. :-)
Game is just for FUN. Enjoy it guys.