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Can you outline the migration path and potential breaking changes when moving a production customer service agent from LangChain legacy chains to LangGraph?

ChatGPTgpt-61 query11/1/2026
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Can you outline the migration path and potential breaking changes when moving a production customer service agent from LangChain legacy chains to LangGraph?
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LangChain migration legacy chains to LangGraph official docs migration guide agents RunnableSequence memory callbacks streamingGoogle ↗
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LangChain migration legacy chains to LangGraph official docs migration guide agents RunnableSequence memory callbacks streaming Google ↗

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LangChain migration legacy chains to LangGraph official docs migration guide agents RunnableSequence memory callbacks streaming
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