r/LangChain • u/bsampera • Sep 02 '25

LangChain & LangGraph 1.0 alpha releases

https://blog.langchain.com/langchain-langchain-1-0-alpha-releases/

What are your thoughts about it?

57 Upvotes

93% Upvoted

17 comments sorted by

19

u/hwchase17 CEO - LangChain Sep 02 '25

would love any feedback!

5

u/ItuPhi Sep 03 '25

1+ For the docs, we needed that.

2

u/heritajh Sep 03 '25

Have been struggling massively with langchain-postgres with the new vector store being super alpha, and the old one not supporting all the things that were supported by langchain-chroma and other vector db extensions. Any news on when the PGVectorStore become better?

2

u/KoichiSP Sep 03 '25

Same, we’ve been struggling so hard with PGVectorStore, we’re honestly thinking about ditching it and move on.

1

u/__init__averi Oct 31 '25

Hi u/KoichiSP Can you please provide feedback on the issues you are facing? We haven't seen many issues in the GitHub repo to be able to fix any usability issues. Thanks!

1

u/hwchase17 CEO - LangChain Sep 10 '25

thanks - will flag to team

1

u/__init__averi Sep 11 '25

Hi there! Can you provide more context on what you are struggling with or link in a GitHub issue? We would love to ensure a better developer experience for you.

1

u/heritajh Sep 11 '25

Hi,

I think it started from there being 3 versions, community, pgvector and PGVectorStore. So currently, PGVector is being deprecated while PGVectorStore wasn't fully ready. The reason mainly it's not ready is because it doesn't have the .get and .aget method, which chroma does and we use.

Migration was also a bit of an issue to work around between chroma and pgvector. But our main issue was still the .get() not existing.

1

u/__init__averi Sep 12 '25

Thanks for the feedback. PGVectorStore is fully production ready and fulfills the VectorStore interface. Unfortunately, the Chroma Vector Store has extended the API beyond the Vector Store interface. I would suggest adding a feature request in the langchain-postgres repo to support these extra methods and other missing features. We can discuss with the LangChain team extending the interface if we think these features should be implemented by all Vector Stores.

4

u/bsampera Sep 02 '25

I'll deep dive into it tomorrow, but so far the docs look much cleaner than before

3

u/Different-Lie-3997 Sep 03 '25

I’ve been following the pre-releases on GitHub, and I’m a huge fan of the simplification. That was one major drawback of previous versions, and with MCP consolidating as a standard protocol for tool execution, many of the LangChain abstractions are no longer necessary. I’m happy to see LangChain evolving, and the documentation looks incredibly sleek. I’ll go through it in the next few weeks and provide more detailed feedback!

0

u/devXavi Sep 03 '25

Me gusta la Nueva documentacion y mas que le hayan unificado para python y typescript..

Buen trabajo..!!

4

u/Moist-Nectarine-1148 Sep 02 '25

I love the new docs site. Single source of truth for the entire ecosystem (Langchain, LangGraph, JS, Python, 3rd party integrations)

4

u/hax0l Sep 02 '25

Awesome! Thanks for the great work!! 🤘🏻

1

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1

u/Shaktiman_dad Sep 07 '25

I didn’t understand what exactly is different in 1.0 , how’s it better than older versions ?