Currently there are no IPv6-Addresses available. This is in beta stage and will be available within this year i guess. DO has posted some news about it in the forums here but nothing concrete.

DO does not provide native IPv6, but personally I've had no trouble with IPv6 tunnels. The lag is barely noticable (Hurricane Electric's PoP is ~1.7ms from DO's New York location) and it's been working fine for me.

As for native, as fs mentioned, there is discussion about it but no official ETA.

How can I add AAAA record for my site hosted at DO? I've got A record on DO DNS and would like to have AAAA as well.

We do not yet support AAAA records for DNS but will be rolling that out when native IPv6 support is ready.

Is there an roadmap/timeframe for IPv6?

@info You can follow the progress on IPv6 on uservoice: http://digitalocean.uservoice.com/forums/136585-digital-ocean/suggestions/2639897-ipv6-addresses

IPv6 is now available in our SGP1 datacenter. Check out the announcement for more info and future plans: https://www.digitalocean.com/company/blog/announcing-ipv6-support-in-singapore/