LangChain Core 1.6.3 has been published, building on the previous 1.6.2 release. This update introduces a new capability that allows model name and provider tracing metadata to be overridden based on the response from a gateway, giving self-hosted users more accurate observability when routing requests through intermediary services.
Additionally, the release includes test coverage for the deprecated .text() access path, ensuring that existing code relying on this older API continues to function as expected while it remains supported. Documentation cleanup also removes stale Args and Raises entries from FileCallbackHandler._write and ChatGeneration.set_text, reducing confusion for developers reading the reference material.
