---
title: "langchain-community Breaking Changes on PyPI | Since.dev"
description: "What each langchain-community release removed, renamed or changed: 41 breaking changes in 1 version on PyPI, each with its source."
canonical_url: https://since.dev/packages/pypi/langchain-community
last_updated: 2025-10-17
---

# langchain-community breaking changes

Every breaking API change we have recorded in langchain-community on PyPI: 41 breaking changes in 1 version. Below are its newest version, removals and renames first, each with its source.

Newest change October 17, 2025

## 0.4

41 breaking changes, first published October 17, 2025.

- **Removed** `langchain_community.callbacks.tracers.LangChainTracerV1`  

langchain_community.callbacks.tracers.LangChainTracerV1 was removed in langchain-community 0.4 [pypi.org](https://pypi.org/project/langchain-community/0.4/)
- **Signature changed** `langchain_community.chains.ernie_functions.convert_to_ernie_function`  

Was from langchain.chains.ernie_functions.base import convert_to_ernie_function; now from langchain_classic.chains.ernie_functions.base import convert_to_ernie_function. [pypi.org](https://pypi.org/project/langchain-community/0.4/)
- **Signature changed** `langchain_community.chains.ernie_functions.create_ernie_fn_chain`  

Was from langchain.chains.ernie_functions.base import create_ernie_fn_chain; now from langchain_classic.chains.ernie_functions.base import create_ernie_fn_chain. [pypi.org](https://pypi.org/project/langchain-community/0.4/)
- **Signature changed** `langchain_community.chains.ernie_functions.create_ernie_fn_runnable`  

Was from langchain.chains.ernie_functions.base import create_ernie_fn_runnable; now from langchain_classic.chains.ernie_functions.base import create_ernie_fn_runnable. [pypi.org](https://pypi.org/project/langchain-community/0.4/)
- **Signature changed** `langchain_community.chains.ernie_functions.create_structured_output_chain`  

Was from langchain.chains.ernie_functions.base import create_structured_output_chain; now from langchain_classic.chains.ernie_functions.base import create_structured_output_chain. [pypi.org](https://pypi.org/project/langchain-community/0.4/)
- **Signature changed** `langchain_community.chains.ernie_functions.create_structured_output_runnable`  

Was from langchain.chains.ernie_functions.base import create_structured_output_runnable; now from langchain_classic.chains.ernie_functions.base import create_structured_output_runnable. [pypi.org](https://pypi.org/project/langchain-community/0.4/)
- **Signature changed** `langchain_community.chains.ernie_functions.get_ernie_output_parser`  

Was from langchain.chains.ernie_functions.base import get_ernie_output_parser; now from langchain_classic.chains.ernie_functions.base import get_ernie_output_parser. [pypi.org](https://pypi.org/project/langchain-community/0.4/)
- **Signature changed** `langchain_community.chains.natbot.base.NatBotChain`  

Was from langchain.chains import NatBotChain; now from langchain_classic.chains import NatBotChain. [pypi.org](https://pypi.org/project/langchain-community/0.4/)
- **Signature changed** `langchain_community.chains.natbot.crawler.black_listed_elements`  

Was from langchain.chains.natbot.crawler import black_listed_elements; now from langchain_classic.chains.natbot.crawler import black_listed_elements. [pypi.org](https://pypi.org/project/langchain-community/0.4/)
- **Signature changed** `langchain_community.chains.natbot.crawler.Crawler`  

Was from langchain.chains.natbot.crawler import Crawler; now from langchain_classic.chains.natbot.crawler import Crawler. [pypi.org](https://pypi.org/project/langchain-community/0.4/)

And 31 more in this version.

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