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Vietnam plans to convert all of its networks to IPv6 • The Register
(www.theregister.com)
This is a most excellent place for technology news and articles.
The article is ambiguous. It states "use IPv6" which at face value could simply mean support it together with IPv4. On the other hand, it states that they are running out of IPv4 addresses beyond what NAT can solve, so perhaps they may not have a choice in the matter.
If this is the nudge needed to transition, then great.