STANAG 4406 Edition 2 has been sent for ratification and adoption by the NATO Nations. The Implementation Status document of 10th January 2006 indicates that the following Nations have ratified Edition 2:
The structure of Annexes is different from that in Edition 1:
Another Annex that was developed for Edition 2, NATO Profile for S/MIME CMS and ESS has now been dropped from STANAG 4406 and put forward as a separate STANAG, STANAG 4631.
There is now also an Implementer's Guide for Edition 2 (version 1.1.