No specific action is required. Old questions don't need closing simply because they are old and/or outdated.
All posts are dated and people sufficiently literate to use a search engine to find an older Q&A should be capable of reading the date that accompanies every post even when a specific release/version number is omitted.
Also people may even be searching specifically for old information because they're dealing with a legacy system.
Questions that get no love get deleted automatically by the system after a certain expiration time.
The fact that this hasn't happened here is one indication that at least at the time when the question was posted it was considered a suitable post.
Questions older than 30 days can't be migrated, but if by current standards it is no longer a suitable post, then one of the other existing pre-defined close reasons can be used and should suffice.
You can also still down vote the question (which may result in the question getting re-evaluated by the system triggering automatic deletion).
