oktw says to #ysitd
<james58899>: Alice and Bob are alive now. They took over two of the previous root servers’ identities, allowing existing clients to use them with no updates or configuration changes. While clients back to 1.0.1 will work, we strongly recommend upgrading to 1.1.0 for better performance. Upgrading will also give you full dual-stack IPv4 and IPv6 capability, which the new root servers share at every one of their locations.