The 6th edition of X.500 is now published by ITU-T.
For a while there has been some discussion about the free availability of the X.500 specifications. There seems to some agreement. I have one our site produced some information for your pleasant reading. You may find link to the sixth edition on http://www.x500standard.com/index.php?n=Ig.Latest.
You may find links to some further explanation and links to the latest freely available documents on http://www.x500standard.com/index.php?n=Ig.LatestAvail.
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