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Originally Posted by Timbuff10  It is when ASA, and Jeppesen gets ahold of them and publishes them in their book that they slap that year on the cover. |
Which makes sense, as does the blurb some have inside that tells the date the information is based on. That way you know how out-of-date it might be.
BTW, most of the publishers will provide periodic updates online to take interim changes into account.