### Answer
I don't have specific information in the available sources about what happens to ongoing chat sessions when you publish updates to a chat agent. The documentation doesn't explicitly address whether new messages in an active chat session continue using the original agent configuration or switch to the newly published version.
For the most accurate answer about this behavior, I recommend checking out these potentially useful sources:
- [Create Chat](
)
- [Get Chat](
)
Would you like me to try to provide a general answer based on typical platform behavior, or would you prefer to reach out to Retell's support for a definitive answer on this specific scenario?