At some point between August and September there appears to have been a number of incorrect auto-unsubscriptions against some of the Hibernate mailing lists (hibernate-dev for sure). I am not going to point fingers as to who is to blame in this. I do however apologize for any inconvenience this might have caused. If you find yourself part of this group, the current direction I am receiving is that you will just have to re-subscribe :( if you happen to still have the unsubscribe notification email I would be very interested in getting it to pass along to our mailman admins; you can forward them to me directly.
Per HHH-2412 and its design discussion I have been working on supporting JDBC4 in Hibernate. Initially I had planned on adding this in 3.6, but now leaning toward 3.5 Anyway, as outlined on the design wiki, I initially thought to add this support as separate modules. However, I quickly came to the realization that using separate modules would actually require users make an explicit choice wrt an extra jar. Especially considering that I could make Hibernate code make this determination programatically, I really did not like that aspect to using modules here. So I started looking for alternatives.