Outdated Documentation for langchain_postgres.checkpoint.PostgresSaver

[SunnyWan59]

I'm currently trying use a postgres checkpointer for persistence. The docs below say to use PostgresSaver, but it seems like this doesnt exist anymore. The documentation should be updated to reflect this. Also it would be great if someone could lead to the right package for a postgres checkpointer.

https://api.python.langchain.com/en/latest/checkpoint/langchain_postgres.checkpoint.PostgresSaver.html

[SunnyWan59]

PostgresSaver is now a part of langgraph.checkpoint.postgres.PostgresSaver. The documentation should reflect this.

https://langchain-ai.github.io/langgraph/reference/checkpoints/#langgraph.checkpoint.postgres.PostgresSaver

[eyurtsev]

@SunnyWan59 thanks for reporting!

Use the v0.3 version of the docs: https://python.langchain.com/api_reference/

The page you're viewing is the 0.1 or 0.2 version of the docs, but it's not showing the banner for some reason (that the documentation is for older versions), so would need to be fixed.