From what I've seen DLC unlockers tend to just be for a license type DLC where it tells the game to allow usage of content already in the game.1) When using a 'DLC unlocker' is it needed to use a new updated 'DLC unlocker' every time a new version of the same DLC comes out or a regular game update will simultaneously update the main game and the DLC to its latest version?
So if an update is released for the base game it likely updates the content the faked license DLC unlocks, but not the faked DLC license title itself.
If the DLC title itself is more than just a license and actually contains new content, my rule of thumb is to update the DLC title if a newer version is known to be available.2) There are cases where instead of an 'unlocker' a full fledged DLC file is released instead which I imagine happens when the DLC content is not already embedded in the base game waiting to be unlocked or will not come attached later on in a new game update (unlike what appears to happen when you use a 'DLC unlocker' as described above).
Same question here, will new regular game updates keep the DLCs up to date in this situation or only a new updated DLC file will do that?
I can't say for sure if it's necessary but following that rule hasn't led to any issues on my end so far.