Just the facts (or at least some of them)
I am not in any position of authority nor of any knowledge beyond what has been told to those of us who have pre-ordered, but I will try to sum up the facts as I understand them, based on Don's posts as well as relayed and direct communications from Mr. Miller.
T5 is still in development. It has not actually been "released for publication". Rather, Mr. Miller decided to ship CDs with what are, according to the text on the CD case, "the initial files for Traveller5". In the e-mail sent to (most) pre-order customers, this is described as "the 'preliminary' edition of T5". The box also states: "This CD-ROM contains the initial material for Traveller5, and is subject to change before publication in print form."
These CDs have only been sent to those who pre-ordered Traveller5 previously. I have no idea what happens if you order the T5 CD from the
www.farfuture.net site today.
Recipients of the CD are enjoined from discussing the specifics of the contents publicly. However, speaking solely from the table of contents, at least the absolute minimum elements required to play the game are present, and more besides.
However, this is not the complete T5, nor, as I understand it, is it intended to be so.
I do not believe any ETA for the completed edition for general publication has been given.