Copyright © by Steve Jackson Games Incorporated.
P. 17. In the first full paragraph, change "Admiral Aral Vorkosigan" to "Aral Vorkosigan". He wasn't an admiral yet! (In the paragraph after that, "Admiral Vorkosigan" is correct.)
P. 26. Under "The Imperial Military Academy", change "he was in his thirties" to "he was 26".
P. 53. In the third paragraph of "Mercenaries", change "Cetagandan fleet" to "Tau Cetan fleet".
P. 86. On the Weapon Table:
P. 231. A clarification, not an erratum: These stats aren't the same as those for similarly named weapons in GURPS Spaceships. The setting uses certain terms differently from GURPS Spaceships.