[Release] langchain-ai/langchain langchain==0.3.30: langchain==0.3.30

LangChain version 0.3.30 has been released with updates since v0.3.29. The release includes a backport of loads/dumps hardening to v0.3 and deprecation of the hub feature. These changes improve serialization robustness and signal the deprecation of hub functionality in the v0.3 branch.

Key Points

• •LangChain v0.3.30 released as a minor update from v0.3.29
• •Loads/dumps serialization functions have been hardened for improved robustness and security
• •Hardening changes backported from newer versions to v0.3 branch for consistency
• •Hub feature is being deprecated in v0.3, signaling users to migrate away from hub-dependent code
• •Release includes maintenance and stability improvements to core serialization mechanisms
• •Users on v0.3 should review hub deprecation notices and plan migration strategies

Workflow Diagram

Concepts