The most current Full Thrust rules set is generally known as version 2.5, though this is not the title of any official release; it refers to the rules from Full Thrust, Second Edition (1992) as extensively amended by the two Fleet Book volumes (published in 1998 and 2000). Version 2.5 is often played with some rules from More Thrust, the most common being fighter morale. The plain Second Edition rules set is known as version 2, and itself incorporated several changes from the previous, now out of print, First Edition published in 1991.
