Graham hit all the high points for BIAB 2004. I just upgraded from ver 11 so I'm gaining all the stuff from ver 12 and ver 2004 (2 upgrades). In one or the other they improved/enhanced all, or at least most of the older styles. That alone makes it worth while.

Between the 2 upgrades, there is a plethera of improvements and additions. With all the learning curves I have going now, it'll take awhile before I have full control of it, but if you use BIAB, even occasionally, I would strongly recommend the upgrade.