From be854a130153e51346d83d3b06f959b80f6cbca6 Mon Sep 17 00:00:00 2001 From: Mason Daugherty Date: Mon, 28 Sep 2026 16:14:05 -0400 Subject: [PATCH] release(langchain): 1.4.3 (#40888) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Prepare the `langchain` 1.4.3 patch release. Bumps package metadata and the lockfile from 1.4.2; no dependency changes or publishing are performed by this PR. ### PRs included since 1.4.2 - [#40886](https://github.com/langchain-ai/langchain/pull/40886): Sanitize cache settings for fallback models. - [#40837](https://github.com/langchain-ai/langchain/pull/40837): Support Bedrock Mantle chat models in `init_chat_model`. - [#40844](https://github.com/langchain-ai/langchain/pull/40844): Recognize GPT-6 structured output without profiles. - [#40530](https://github.com/langchain-ai/langchain/pull/40530): Repair invalid tool calls in `create_agent`. - [#40713](https://github.com/langchain-ai/langchain/pull/40713): Remove the commented-out Cohere extra. - [#40626](https://github.com/langchain-ai/langchain/pull/40626): Bump locked AnyIO from 4.11.0 to 4.14.2. - [#40794](https://github.com/langchain-ai/langchain/pull/40794): Correct repository setup guidance and package documentation. Made by [Open SWE](https://github.com/langchain-ai/open-swe) · [view thread](https://openswe.langchain.dev/agents/c2dee156-b2b1-573e-8f59-e498d251ae49) · openai:gpt-6-astra (medium) Co-authored-by: Mason Daugherty Co-authored-by: open-swe[bot] --- libs/langchain_v1/langchain/__init__.py | 2 +- libs/langchain_v1/pyproject.toml | 2 +- libs/langchain_v1/uv.lock | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/libs/langchain_v1/langchain/__init__.py b/libs/langchain_v1/langchain/__init__.py index b3b06c82ae..cbd81ac002 100644 --- a/libs/langchain_v1/langchain/__init__.py +++ b/libs/langchain_v1/langchain/__init__.py @@ -1,3 +1,3 @@ """Main entrypoint into LangChain.""" -__version__ = "1.4.2" +__version__ = "1.4.3" diff --git a/libs/langchain_v1/pyproject.toml b/libs/langchain_v1/pyproject.toml index 8b41ea9872..df4375d10e 100644 --- a/libs/langchain_v1/pyproject.toml +++ b/libs/langchain_v1/pyproject.toml @@ -21,7 +21,7 @@ classifiers = [ "Topic :: Software Development :: Libraries :: Python Modules", ] -version = "1.4.2" +version = "1.4.3" requires-python = ">=3.10.0,<4.0.0" dependencies = [ "langchain-core>=1.6.3,<2.0.0", diff --git a/libs/langchain_v1/uv.lock b/libs/langchain_v1/uv.lock index ecc45755f5..92dd3f92b2 100644 --- a/libs/langchain_v1/uv.lock +++ b/libs/langchain_v1/uv.lock @@ -2282,7 +2282,7 @@ wheels = [ [[package]] name = "langchain" -version = "1.4.2" +version = "1.4.3" source = { editable = "." } dependencies = [ { name = "langchain-core" },