Finally, ICANN is planning to release in the next few weeks an advisory at
https://www.icann.org/resources/pages/advisories-2012-02-25-en describing
the considerations that registries should have when migrating ROIDs. I
have attached a draft of the advisory and would appreciate any input you
may have by 17 August.

Francisco,

In the plan requirement, number 4 says:

"4) The Registry MUST provide the affected registrars and ICANN (through a GDD portal case), the mapping of the new to the old ROIDs."

Does this need to be a one-to-one mapping listed all contacts, or for registries that can say a general rule can it be just the rule ?

For instance, something like "all ROIDs previously known as something-something will now be something_something-UniqueID".

Tks,

Rubens