Releases·Tool Release
langchain-ai/langchain langchain-core==1.6.2
LangChain shipped langchain-core 1.6.2 on September 4, 2026, following 1.6.1. The release adds async tool support for OpenAI and patches mutation bugs in Google GenAI and Bedrock Converse standard content handling.
2 engagement2 sourcesFri, Sep 4, 2026, 09:29 PM
AI Overview
- langchain-core 1.6.2 adds async tool support for OpenAI and fixes content-mutation bugs in google-genai and Bedrock Converse handlers
- The release bumps mistune to 3.3.3 and tornado to 6.5.8 in /libs/core
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Releases·Tool Release
LangChain ships langchain-core 1.6.0 with standard model exception types
LangChain released langchain-core 1.6.0, adding standard model exception types and fixing several issues including postponed annotations in StructuredTool and serialization of RunnablePick. The update improves tool schema resolution and Windows portability.
LangChain released langchain-core 1.6.0, adding standard model exception types and fixing several issues including postponed annotations in StructuredTool and serialization of RunnablePick. The update improves tool schema resolution and Windows portability.
0300 engagement3 sourcesgithubWed, Aug 19, 2026, 03:55 PM
Releases·Tool Release
langchain-openai==1.6.1 ships async tools, Azure AD fix, gpt-5.6-sol routing
LangChain shipped langchain-openai 1.6.1 on GitHub, fixing routing of gpt-5.6-sol to the responses API and adding support for async tools, configuration_update, and Azure AD auth with OpenAI 3.8. The release matters to developers building on OpenAI models through LangChain, since it also corrects reasoning_effort_levels metadata for gpt-5 and gpt-5.1.
LangChain shipped langchain-openai 1.6.1 on GitHub, fixing routing of gpt-5.6-sol to the responses API and adding support for async tools, configuration_update, and Azure AD auth with OpenAI 3.8. The release matters to developers building on OpenAI models through LangChain, since it also corrects reasoning_effort_levels metadata for gpt-5 and gpt-5.1.
0 engagement1 sourcegithubTue, Sep 8, 2026, 02:20 PM
Releases·Tool Release
LangChain releases langchain-openai 1.5.0 with OpenAI 3.0 SDK support
LangChain released langchain-openai 1.5.0, adding support for the OpenAI 3.0 SDK and bumping the langgraph floor in lockfiles. The update is a minor release following 1.4.3.
LangChain released langchain-openai 1.5.0, adding support for the OpenAI 3.0 SDK and bumping the langgraph floor in lockfiles. The update is a minor release following 1.4.3.
0 engagement1 sourcegithubThu, Aug 13, 2026, 01:15 PM
Releases·Tool Release
LangChain adds reasoning_effort as standard chat model parameter in core v1.5.0
LangChain released langchain-core v1.5.0, introducing `reasoning_effort` as a standard chat model parameter. This allows developers to control the amount of reasoning a model applies, enabling cost-performance trade-offs. The release also includes dependency bumps for soupsieve and mistune.
LangChain released langchain-core v1.5.0, introducing `reasoning_effort` as a standard chat model parameter. This allows developers to control the amount of reasoning a model applies, enabling cost-performance trade-offs. The release also includes dependency bumps for soupsieve and mistune.
0500 engagement5 sourcesgithubTue, Jul 21, 2026, 03:37 AM
Releases·Tool Release
langchain-ai/langchain releases langchain-openai==1.7.2 fixing Responses stream block drift
LangChain published langchain-openai 1.7.2 on GitHub, a patch release following 1.7.1. The update fixes handling of OpenAI Responses API streams so items stay on one block when output_index drifts.
LangChain published langchain-openai 1.7.2 on GitHub, a patch release following 1.7.1. The update fixes handling of OpenAI Responses API streams so items stay on one block when output_index drifts.
1 engagement1 sourcegithubWed, Oct 14, 2026, 01:51 PM