[Release] langchain-ai/langchain langchain-fireworks==1.4.0: langchain-fireworks==1.4.0

langchain-fireworks 1.4.0 is released with a major migration to the fireworks-ai 1.x SDK. The update includes improved error handling for prompt overflow scenarios, refreshed model profile data, and multiple dependency upgrades including langsmith, requests, urllib3, and langchain-core. This release modernizes the Fireworks integration with LangChain to leverage the latest SDK capabilities.

Key Points

• •Migrate to fireworks-ai 1.x SDK - major version upgrade for improved compatibility and features
• •Implement ContextOverflowError handling - raise proper exceptions when prompts exceed token limits
• •Refresh model profile data - updated model configurations and capabilities in the latest release
• •Upgrade langsmith from 0.7.31 to 0.8.0 - improved observability and tracing capabilities
• •Update core dependencies - requests (2.34.0), urllib3 (2.7.0), langchain-core (1.3.3) for security and stability
• •Harden Dependabot version-bound preservation - improved CI/CD infrastructure for dependency management
• •Bump idna to 3.15 - security and compatibility improvements for domain name handling

Workflow Diagram

Concepts