Answered below, grandfathered users are our early adopters and we release features to them in a limited public beta test first to collect feedback before a general release.

There is no correlation to size allocation, it's just that they are first to be able to assign IPv6 to droplets in the Singapore region.

Thanks, Moisey Cofounder DigitalOcean

Thanks. I didn't think the type of account was linked to the allocation size, sorry for not being clear. I was just curious what allocation sizes were being given out at all.

Edit: and I see that in the interim that's been answered. Looking forward to seeing larger allocations appear as the beta progresses :)

If you look below, someone from Digital Ocean responded. It's a specific set of early adopter accounts.