toolbox-langchain: v1.4.0

1.4.0 (2026-09-01)

Features

• langchain: pass telemetry attributes (#740) (c74c7e0)
• langchain: support secure parameters in langchain tools and clients (bff0b2f)

Note

For additional changelogs of the underlying toolbox-core package, visit: https://github.com/googleapis/mcp-toolbox-sdk-python/releases/tag/toolbox-core-v1.4.0