Heck, there isn't even a single IDW continuity; mostly the things they do are standalones, aside from the interconnected John Byrne stuff and the Abramsverse stuff.
Although I did make sure that the crew with Kang in the first framing sequence of Alien Spotlight: Klingons
matched the ones we saw in the "Day of the Dove" issue of Blood Will Tell
(And I used crew members from Blood Will Tell
in "The Unhappy Ones" in Seven Deadly Sins