langgraph
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langgraph sdk==0.3.15 released
LangGraph SDK 0.3.15 adds metadata filtering to cron search/count, making it easier for agent builders to target and manage scheduled jobs by metadata, and it bumps core packages including `langchain-core` to 1.4.0, `langgraph` to 1.2.1, and promotes alpha packages to official versions. It also fixes a concrete SDK bug by percent-encoding caller-supplied identifiers in URL paths, which should prevent malformed requests and improve reliability when IDs contain special characters.
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langgraph 1.2.0 released
LangGraph 1.2.0 introduces durable error-handler resume across host crashes, enabling agents to recover from infrastructure failures without losing state, and adds `set_node_defaults()` to StateGraph for simplified node configuration. The release also optimizes checkpoint management with delta channel snapshots after max supersteps, improving performance for long-running agent workflows.
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langgraph sdk==0.3.14 released
LangGraph SDK 0.3.14 introduces a `return_minimal` parameter for threads update operations, enabling more efficient API responses for AI agent builders. The release also includes streaming transformer infrastructure and support for `stream_events(version='v3')` on Pregel, providing enhanced control over event streaming in agent workflows.
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Build your first production agent with LangGraph
A 90-minute walkthrough that ships a tool-using agent with persistent state, retries, and observability.