My BD-30 is still on the original 2.2 FW as when I purchased it.
I have a 2.9 FW Disc that Panasonic sent me, but haven't dared to install it.
The Panny Tech suggested "Not to update"...unless I had an issue.
I'm happy to say, I've watch many movies and so far had no problems.
"IF", I did install the 2.9 FW Disc...does that also take care of all the updates "Between" 2.2 & 2.9 ???