This is a serious canon question for the community.
No, it isn't.
The ONLY person who actually gets to say what is canon is Marc Miller. Not even Rob and I get to make those calls. And it certainly isn't the Traveller community (for example, ask the "Traveller community" if the TNE virus is canon).
That being said, since Marc did approve this, I'll post my answer to the question, "What is Traveller canon?"
1. It is, at any given moment, what Marc Miller decides.
2. Marc reserves the right to change his mind.
3. The GURPS Traveller universe (GTU?) and the Official Traveller Universe overlap; exactly where they overlap is questionable, depending on who's asking the questions.
4. The precedent of "mostly recently published source" applies, unless that newer source is wrong about something; no canon source is perfect.
5. Never, ever assume that current licensees are not canon; rather, current licensees are always canon, unless they print something wrong.
6. Marc decides who is wrong.
7. There's no order to the six rules above.