Bump langchain to 1.3#161
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….0-beta9 for local-ai) and added
langchain4j-http-client-jdk.
This upgrade required significant refactoring to adapt to the new LangChain4j API, including:
- Migrating from ChatLanguageModel to ChatModel and StreamingChatLanguageModel to StreamingChatModel.
- Updating chat generation methods from generate to chat.
- Adjusting JeddictStreamHandler to use StreamingChatResponseHandler and its new methods
(onPartialResponse, onCompleteResponse).
- Modifying error handling for chat model responses.
- Refactoring maxRetries handling in chat model builders.
jGauravGupta
approved these changes
Aug 23, 2025
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Upgraded LangChain4j dependencies in pom.xml to version 1.3.0 (or 1.3.0-beta9 for local-ai) and added langchain4j-http-client-jdk. Although the effort to adapt the current codebase to langchain 1.3 was quite minimal, I think it is needed as langchain has done major architectural changes in 1.x and having the latest version is a much more solid basis for further improvements.
This upgrade required significant refactoring to adapt to the new LangChain4j API, including:
(onPartialResponse, onCompleteResponse).
PLEASE NOTE: LMStudioChatModel required some more work, which I am still not able to test because LMStudio is not really working on my PC. I'll be happy to improve or do more changes as reqquired.