[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
langchain (changelog)	==1.3.18 → ==1.4.0
langchain (changelog)	>=1.3.18 → >=1.4.0

---

Warning

Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

---

Configuration

📅 Schedule: (UTC)

• Branch creation
  • "before 8am on Monday"
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about these updates again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[Copilot]

🟢 Approval recommended

The changes are a straightforward, consistent dependency/version refresh across tests, examples, and docs with no detected inconsistencies in the updated files.

Pull request overview

Updates the LangChain dependency version used by the LangChain instrumentation package’s test “latest” environment, examples, and docs build requirements to 1.4.0, keeping the repo’s verification and example environments aligned with the current LangChain release.

Changes:

• Bump langchain from 1.3.18 to 1.4.0 in the LangChain instrumentation package’s tests/requirements.latest.txt.
• Update LangChain version pins/constraints in the LangChain instrumentation examples (manual/zero-code/tools/agent/workflow), including regenerating the example uv.lock files.
• Update docs-requirements.txt to require langchain>=1.4.0.

File summaries

File	Description
instrumentation/opentelemetry-instrumentation-genai-langchain/tests/requirements.latest.txt	Updates the “latest” test environment LangChain pin to 1.4.0.
instrumentation/opentelemetry-instrumentation-genai-langchain/examples/zero-code/uv.lock	Regenerates lockfile to resolve LangChain at 1.4.0 for the zero-code example.
instrumentation/opentelemetry-instrumentation-genai-langchain/examples/zero-code/requirements.txt	Updates the zero-code example’s LangChain pin to 1.4.0.
instrumentation/opentelemetry-instrumentation-genai-langchain/examples/zero-code/pyproject.toml	Updates the zero-code example dependency pin to LangChain 1.4.0.
instrumentation/opentelemetry-instrumentation-genai-langchain/examples/workflow/requirements.txt	Raises the workflow example’s minimum LangChain version to 1.4.0.
instrumentation/opentelemetry-instrumentation-genai-langchain/examples/tools/requirements.txt	Updates the tools example’s LangChain pin to 1.4.0.
instrumentation/opentelemetry-instrumentation-genai-langchain/examples/manual/uv.lock	Regenerates lockfile to resolve LangChain at 1.4.0 for the manual example.
instrumentation/opentelemetry-instrumentation-genai-langchain/examples/manual/requirements.txt	Updates the manual example’s LangChain pin to 1.4.0.
instrumentation/opentelemetry-instrumentation-genai-langchain/examples/manual/pyproject.toml	Updates the manual example dependency pin to LangChain 1.4.0.
instrumentation/opentelemetry-instrumentation-genai-langchain/examples/agent/requirements.txt	Raises the agent example’s minimum LangChain version to 1.4.0.
docs-requirements.txt	Raises docs build requirement to LangChain >= 1.4.0.

Review details

• Files reviewed: 9/11 changed files
• Comments generated: 0
• Review effort level: Lite

---

💡 Add a code-review agent skill or configure MCP servers for context-aware, tailored reviews. Learn more in the docs.

[opentelemetry-pr-dashboard]

Pull request dashboard status

Merged · refreshed 2026-09-17 05:30 UTC

Status above doesn't look right?

• Anything look wrong? Report it with what you expected; it helps us improve the dashboard.