Files
dependabot[bot] 9bd63b4ac8 chore: bump langsmith from 0.7.13 to 0.7.31 in /libs/core (#36813)
Bumps [langsmith](https://github.com/langchain-ai/langsmith-sdk) from
0.7.13 to 0.7.31.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/langchain-ai/langsmith-sdk/releases">langsmith's
releases</a>.</em></p>
<blockquote>
<h2>v0.7.31</h2>
<h2>What's Changed</h2>
<ul>
<li>chore(deps-dev): bump langchain-core from 1.2.23 to 1.2.28 in
/python by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2692">langchain-ai/langsmith-sdk#2692</a></li>
<li>chore(deps-dev): bump <code>@​anthropic-ai/sdk</code> from 0.82.0 to
0.84.0 in /js by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2684">langchain-ai/langsmith-sdk#2684</a></li>
<li>chore(deps): bump cryptography from 46.0.6 to 46.0.7 in /python by
<a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2693">langchain-ai/langsmith-sdk#2693</a></li>
<li>chore(deps-dev): bump <code>@​anthropic-ai/sdk</code> from 0.84.0 to
0.85.0 in /js by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2700">langchain-ai/langsmith-sdk#2700</a></li>
<li>feat(py): Tag OpenAI Agent Python SDK runs with ls_agent_type by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2699">langchain-ai/langsmith-sdk#2699</a></li>
<li>feat(js): Adds ls_agent_type metadata to AI SDK runs by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2701">langchain-ai/langsmith-sdk#2701</a></li>
<li>chore(deps-dev): bump types-tqdm from 4.67.3.20260303 to
4.67.3.20260408 in /python by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2710">langchain-ai/langsmith-sdk#2710</a></li>
<li>chore(deps): bump pnpm/action-setup from 5 to 6 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2705">langchain-ai/langsmith-sdk#2705</a></li>
<li>chore(deps): bump the py-minor-and-patch group across 1 directory
with 10 updates by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2711">langchain-ai/langsmith-sdk#2711</a></li>
<li>chore(deps-dev): bump <code>@​anthropic-ai/sdk</code> from 0.85.0 to
0.86.0 in /js by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2702">langchain-ai/langsmith-sdk#2702</a></li>
<li>chore(deps): bump actions/github-script from 8 to 9 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2706">langchain-ai/langsmith-sdk#2706</a></li>
<li>chore(deps-dev): bump the js-minor-and-patch group across 1
directory with 7 updates by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2712">langchain-ai/langsmith-sdk#2712</a></li>
<li>chore(deps-dev): bump types-psutil from 7.2.2.20260130 to
7.2.2.20260408 in /python by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2709">langchain-ai/langsmith-sdk#2709</a></li>
<li>chore(deps-dev): bump rich from 14.3.3 to 15.0.0 in /python by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2708">langchain-ai/langsmith-sdk#2708</a></li>
<li>feat: Filter kwargs from new token events by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2714">langchain-ai/langsmith-sdk#2714</a></li>
<li>release(py): 0.7.31 by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2716">langchain-ai/langsmith-sdk#2716</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.30...v0.7.31">https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.30...v0.7.31</a></p>
<h2>v0.7.30</h2>
<h2>What's Changed</h2>
<ul>
<li>feat(python): add service feature to sandbox by <a
href="https://github.com/DanielKneipp"><code>@​DanielKneipp</code></a>
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2665">langchain-ai/langsmith-sdk#2665</a></li>
<li>fix(js): Fix prototype pollution bug in anonymizers by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2690">langchain-ai/langsmith-sdk#2690</a></li>
<li>release(js): 0.5.18 by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2691">langchain-ai/langsmith-sdk#2691</a></li>
<li>chore(js/sandbox): suppress warning log by <a
href="https://github.com/hntrl"><code>@​hntrl</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2694">langchain-ai/langsmith-sdk#2694</a></li>
<li>feat(js): Add metadata to Claude Agent SDK JS tracing by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2695">langchain-ai/langsmith-sdk#2695</a></li>
<li>fix(py): Fix run tree memory leak by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2696">langchain-ai/langsmith-sdk#2696</a></li>
<li>release(py): 0.7.30 by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2698">langchain-ai/langsmith-sdk#2698</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.29...v0.7.30">https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.29...v0.7.30</a></p>
<h2>v0.7.29</h2>
<h2>What's Changed</h2>
<ul>
<li>release(js): 0.5.17 by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2681">langchain-ai/langsmith-sdk#2681</a></li>
<li>feat(py): Fix race condition around Claude Agent SDK instrumentation
by <a href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a>
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2685">langchain-ai/langsmith-sdk#2685</a></li>
<li>release(py): 0.7.29 by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2686">langchain-ai/langsmith-sdk#2686</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.28...v0.7.29">https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.28...v0.7.29</a></p>
<h2>v0.7.28</h2>
<h2>What's Changed</h2>
<ul>
<li>feat(py): Support subagent tracing in Claude Agents SDK, fix usage
and duplicate messages by <a
href="https://github.com/jacoblee93"><code>@​jacoblee93</code></a> in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2670">langchain-ai/langsmith-sdk#2670</a></li>
<li>chore(deps-dev): bump the py-minor-and-patch group across 1
directory with 11 updates by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2677">langchain-ai/langsmith-sdk#2677</a></li>
<li>chore(deps-dev): bump the js-minor-and-patch group across 1
directory with 8 updates by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2667">langchain-ai/langsmith-sdk#2667</a></li>
<li>chore(deps): bump pnpm/action-setup from 4 to 5 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/pull/2658">langchain-ai/langsmith-sdk#2658</a></li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="c434999d05"><code>c434999</code></a>
release(py): 0.7.31 (<a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/issues/2716">#2716</a>)</li>
<li><a
href="47d7c4a783"><code>47d7c4a</code></a>
feat: Filter kwargs from new token events (<a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/issues/2714">#2714</a>)</li>
<li><a
href="3c57445b54"><code>3c57445</code></a>
chore(deps-dev): bump rich from 14.3.3 to 15.0.0 in /python (<a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/issues/2708">#2708</a>)</li>
<li><a
href="2be6cd01a2"><code>2be6cd0</code></a>
chore(deps-dev): bump types-psutil from 7.2.2.20260130 to 7.2.2.20260408
in /...</li>
<li><a
href="b8b6ca32d4"><code>b8b6ca3</code></a>
chore(deps-dev): bump the js-minor-and-patch group across 1 directory
with 7 ...</li>
<li><a
href="9897cb33da"><code>9897cb3</code></a>
chore(deps): bump actions/github-script from 8 to 9 (<a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/issues/2706">#2706</a>)</li>
<li><a
href="572c018428"><code>572c018</code></a>
chore(deps-dev): bump <code>@​anthropic-ai/sdk</code> from 0.85.0 to
0.86.0 in /js (<a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/issues/2702">#2702</a>)</li>
<li><a
href="57447524c8"><code>5744752</code></a>
chore(deps): bump the py-minor-and-patch group across 1 directory with
10 upd...</li>
<li><a
href="960cae7f49"><code>960cae7</code></a>
chore(deps): bump pnpm/action-setup from 5 to 6 (<a
href="https://redirect.github.com/langchain-ai/langsmith-sdk/issues/2705">#2705</a>)</li>
<li><a
href="9370e7670a"><code>9370e76</code></a>
chore(deps-dev): bump types-tqdm from 4.67.3.20260303 to 4.67.3.20260408
in /...</li>
<li>Additional commits viewable in <a
href="https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.13...v0.7.31">compare
view</a></li>
</ul>
</details>
<br />

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
2026-04-17 12:53:51 -06:00
..

🦜🍎 LangChain Core

PyPI - Version PyPI - License PyPI - Downloads Twitter

Looking for the JS/TS version? Check out LangChain.js.

To help you ship LangChain apps to production faster, check out LangSmith. LangSmith is a unified developer platform for building, testing, and monitoring LLM applications.

Quick Install

pip install langchain-core

🤔 What is this?

LangChain Core contains the base abstractions that power the LangChain ecosystem.

These abstractions are designed to be as modular and simple as possible.

The benefit of having these abstractions is that any provider can implement the required interface and then easily be used in the rest of the LangChain ecosystem.

⛰️ Why build on top of LangChain Core?

The LangChain ecosystem is built on top of langchain-core. Some of the benefits:

  • Modularity: We've designed Core around abstractions that are independent of each other, and not tied to any specific model provider.
  • Stability: We are committed to a stable versioning scheme, and will communicate any breaking changes with advance notice and version bumps.
  • Battle-tested: Core components have the largest install base in the LLM ecosystem, and are used in production by many companies.

📖 Documentation

For full documentation, see the API reference. For conceptual guides, tutorials, and examples on using LangChain, see the LangChain Docs. You can also chat with the docs using Chat LangChain.

📕 Releases & Versioning

See our Releases and Versioning policies.

💁 Contributing

As an open-source project in a rapidly developing field, we are extremely open to contributions, whether it be in the form of a new feature, improved infrastructure, or better documentation.

For detailed information on how to contribute, see the Contributing Guide.