Which is pretty common, because mod authors have busy lives and often don't get around to updating compatibility information.Īlso, minor KSP version releases almost never break things these days, since those are minimal bugfix-type updates, usually. It just means that the author hasn't marked it as such. For example, if a mod says "1.7.0" on it, then that doesn't necessarily mean that it doesn't work on 1.7.1.
It does not say anything about whether the mod works with other versions of KSP- that's an unknown.
It means that the mod author has personally verified that that specific version of the mod happens to work on that specific version of KSP. When SpaceDock says that a mod is for a particular version, that means "This mod works on this version of KSP". (My own mods, for example, have generally worked just fine as-is for the last several KSP versions.) The overwhelming majority of mods work just fine after KSP updates these days, it's fairly rare for a KSP update to break any given mods.
Just to elaborate on what pointed out above: