I've always loved this film, and they have done an amazing job with the blu-ray version. The picture quality is superb! All of the cgi space fighters, the barrier & laser stuff looks exactly as a 1984 film with computer generated images should look, with no Lucas revisionism.
The extra material is good as well, something I generally never look at. Some nice material from the cast, the technical guys and the Cray X-MP.
The dvd is definitely region 1.
The blu-ray while it is described as "A" on the website (Region: Region A/1), I played the blu-ray disc on "B" region locked (Australia) players, a Soniq & a Sony with no problems, And there is no mention on the blu-ray or the blu-ray package of any blu-ray region locking. So I suspect the blu-ray is region free.
Also note, I wasn't allowed to download a digital copy as I wasn't in an allowed country which really doesn't bother me.