Confirmed. Handicap file is the same.
Here's what I have witnessed that seems different (@ Prince level):
AI employs carriers WITH full complement of fighter planes and... uh... hurts you with it.
AI deploys navy pretty well in place when it declares war for taking out your ocean resources quickly in the beginning of the war... which is something *I do... grrr.

This is HUGE in my book.
AI uses air power more effectively- it actually bombs the crap out of you without reservation now- it used to seem to hold back about 25% of its air force in defense. Dumb when on the offensive.
AI, when it attacks, usually has two fronts going in some way, either one on land the other at sea, or two on land. Unless it's simply too small for this.
AI grows MUCH larger now when successful, due to Vassal dynamic of game (a very good thing that makes them more challenging). Had an AI own 55% of the land once this way the highest it has EVER gotten with me.
AI point gain when it is succeeding at end game accelerates, doesn't typically taper off as it used to do. It keeps growing right to the end unless you've somehow crippled it directly in previous wars. So, watch out for your powerful friends, they will become rivals.
AI appears to use units when seiging a city MUCH better. Artillery type units come at you in much larger numbers and can make your own advances that much tricker... A GREAT thing!
AI WILL go for the nukes... haven't been victimized by them yet... One fun example (a premptive one on myh part): England was technologically advanced of me (though smaller in size/productivity) and she went for the Manhatten project (I spy a LOT). Would have had it and the bombs many turns before me and was at FURIOUS with me. I didn't want to see that play out so I invaded lacking any airpower versus her weaker land units and superior airforce. She raped my units but I took her capital (only my >productivity saved me) and destroyed the project and some other buildings. War ended. I gave her back her capital...
AI uses religion a little better. I see about 50% more missionary activity than before. This helps them economically. Still easy to dominate here though.
AI seems to understand how to maximize productivity better now- I saw many cities producing high hundreds (>150) of hammers due to smart management of terrain combined with civics. Some real powerhouses now. Not just growing population willy nilly. This is REALLY important in the end game when *usually* I build ALL the wonders... but time after time in my games now the AI beats me out by jsut a FEW turns if I am not EXCEEDINGLY careful with my resource management.
There was one other really neat thing it does now too, but my mind just shut down... sorry... dial tone...
Caveat... most of these behaviors if not ALL *should* be independent of this, but I witnessed what I reported playing my mod:
http://forums.civfanatics.com/downloads.php?do=file&id=309