# LangGraph SDK 0.4.9 adds thread priority settings

published: 2026-10-23T15:05:41.476Z
topic: frameworks
source: https://github.com/langchain-ai/langgraph/releases/tag/sdk%3D%3D0.4.9
url: https://aiagentnews.io/stories/langgraph-sdk-0-4-9-adds-thread-priority-settings

LangChain has released langgraph-sdk 0.4.9, tagged sdk==0.4.9 on GitHub. The release adds a Priority option for thread priority settings and includes several dependency updates.

The langgraph-sdk 0.4.9 release was published on GitHub on 23 October and follows the 0.4.8 release. According to the changelog, its main feature is a Priority option for setting thread priority.

The release also removes precautionary upper bounds on third-party dependencies. Other changes bump certifi from 2026.2.25 to 2026.10.19, update dotenv from 17.4.2 to 18.0.4 in the CLI JavaScript examples, and apply six minor and patch updates to the prebuilt library.

The release is marked as the latest on the langchain-ai/langgraph repository, and its changes are listed as individual commits with pull request numbers.

## Why it matters if you build agents

If you use the Python SDK to call LangGraph, you can now set thread priority through the new Priority option instead of working around it.

Removing the upper bounds on third-party dependencies may make it easier to install the SDK alongside other packages that pin those dependencies, though you should still test your own pins after upgrading.