What is the new name for one D&D?

I'm curious, can you clarify what you mean by "one D&D" and how it relates to a new name? Are you referring to the popular role-playing game Dungeons & Dragons (D&D), and if so, are you asking about a recent update or change in its naming convention? It's not immediately clear what "one D&D" refers to, so could you please elaborate or provide more context? This will help me give you an accurate and relevant answer to your question.