1108 is out now, so that'll be what's included with the release...

Don't you have to spend credit for each AIRAC cycle? So I think it's a pretty good deal PMDG is releasing the 737NGX bird with the latest AIRAC built it, it's going to save a lot of people precious credits for the next AIRACs to come. I remember flying an addon that came with the last navdata made available as freeware, and that was like in 2006. PMDG really thinks everything to make costumers happy.