Background
The GitHub GraphQL API currently supports two types of global node ID formats. The legacy format will be closing down and replaced with a new format. This guide shows you how to migrate to the new format, if necessary.
By migrating to the new format, you ensure that the response times of your requests remain consistent and small. You also ensure that your application continues to work once the legacy IDs are closing down.
To learn more about why the legacy global node ID format will be closing down, see New global ID format coming to GraphQL.