You can check out all the updates to the game that you've missed here:
http://wiki.cohtitan.com/wiki/Issues
Welcome home! 
Blondeshell (1381 badges) - My other badge hunters
VidiotMaps Master Cartographer
MArc #87989 - Enter, The Conglomerate
Invention Salvage Distribution Charts
Welcome back, Clorius. Glad to see so many of the "old timers" returning.
--NT
They all laughed at me when I said I wanted to be a comedian.
But I showed them, and nobody's laughing at me now!
If I became a red name, I would be all "and what would you mere mortals like to entertain me with today, mu hu ha ha ha!" ~Arcanaville
Most of the current board regulars probably won't remember me
- I left over a year ago due to quite a few things all snowballing together at once. I have come back for a bit (due, in part, to some free time I got due to the shutdown of Dungeon Runners) to what was my first MMO.
- though Atlas is now filled with AE mission "spam" I can filter that out in my head and remember how it was when I started. I have really missed this game.
I do have to say that logging into Atlas and hearing that music brought back many good memories
Quite a bit has changed since I was gone, is there a site w/ a comprehensive list of changes since about, oh, Issue 11/12? I noticed that teams have an option to auto-exempt now and you can change a setting to allow for auto-accepting of level range changes, Kheldians are unlocked much earlier, a whole bunch of stuff seems completely out of sync (to me - but I will get used to it I am sure).
The best part, so far, has been seeing at least a few familiar forum names still posting on a regular basis (Bill Z, Aett_Thorn, Fulmens, Memphis_Bill, and more) - that, more than the continued existance of the servers, is the best indication that the game is still likely something I will love.
Well, gotta see if I can squeeze some time into the game - take it easy Paragon