I've been noticing a number of questions related to game updates, like New rare item and enemies in Terraria 1.0.3, and I wonder if these questions aren't limited in their usefulness.
If the thinking behind future releases being too localized is that the question becomes useless after the game is released, then similar thinking can be applied to updates: updated content is released and people care about new content for a week or two, then the content becomes just another part of the game as a whole. Questions about what was added in a minor release after a small post-update window are completely useless to the community and questions about that content become interesting.
My suggestion: we should close updated content questions as too localized and encourage updates of existing questions and new questions about the content itself.