As previously mentioned on the mailing list, we will shortly be migrating the domain to version 3. This has already been done for some users and should be relatively painless, provided you follow the documentation and terms of use. In particular we ask you to notice the following:

Otherwise the main difference is a lot of new features and bugs that have been fixed. For more information on the changes to the interface, please see the release notes for version 3.

The migration is scheduled to take place some time during the first half of January 2018.