I don't actually like version checker, for a bunch of reasons, but the big one is that 99% of the time it's telling me things I don't care about and didn't need to know. Is there a new version of some content mod? That's nice, I don't care; odds are that the update isn't save-compatible, so unless I happen to be at exactly the point of starting a new run, knowing about it doesn't matter. And if I am starting a new run, it's not hard to go check myself.
Now, it can make some sense for things like, well, Nex itself, where the mod author is careful about maintaining save compatibility, but in general? Not really useful to me.
Still, PS:AC is the sort of mod that's more likely to have save-compatible updates (because I more or less know what I'm doing and do intend to be careful about that), so... okay, I'll consider it.
That said, I'm definitely not going to release a version that's just "adds support for version-checker", so - unless some critical bug-fix comes up before then - that's probably not going to happen until I need to update it for the next version of Starsector.