Merge branch 'master' into LouisAuneau/openai-validation-errors

Author: LouisAuneau

.github/ISSUE_TEMPLATE/bug-report.yml

@@ -6,6 +6,8 @@ body:
   - type: markdown
     attributes:
       value: |
+        > **All contributions must be in English.** See the [language policy](https://docs.langchain.com/oss/python/contributing/overview#language-policy).
+
         Thank you for taking the time to file a bug report.
 
         For usage questions, feature requests and general design questions, please use the [LangChain Forum](https://forum.langchain.com/).
@@ -65,8 +67,8 @@ body:
         - label: langchain-mistralai
         - label: langchain-nomic
         - label: langchain-ollama
+        - label: langchain-openrouter
         - label: langchain-perplexity
-        - label: langchain-prompty
         - label: langchain-qdrant
         - label: langchain-xai
         - label: Other / not sure / general

.github/ISSUE_TEMPLATE/feature-request.yml

@@ -6,6 +6,8 @@ body:
   - type: markdown
     attributes:
       value: |
+        > **All contributions must be in English.** See the [language policy](https://docs.langchain.com/oss/python/contributing/overview#language-policy).
+
         Thank you for taking the time to request a new feature.
 
         Use this to request NEW FEATURES or ENHANCEMENTS in LangChain. For bug reports, please use the bug report template. For usage questions and general design questions, please use the [LangChain Forum](https://forum.langchain.com/).
@@ -18,6 +20,8 @@ body:
         * [LangChain ChatBot](https://chat.langchain.com/)
         * [GitHub search](https://github.com/langchain-ai/langchain),
         * [LangChain Forum](https://forum.langchain.com/),
+
+        **Note:** Do not begin work on a PR unless explicitly assigned to this issue by a maintainer.
   - type: checkboxes
     id: checks
     attributes:
@@ -62,8 +66,8 @@ body:
         - label: langchain-mistralai
         - label: langchain-nomic
         - label: langchain-ollama
+        - label: langchain-openrouter
         - label: langchain-perplexity
-        - label: langchain-prompty
         - label: langchain-qdrant
         - label: langchain-xai
         - label: Other / not sure / general

.github/ISSUE_TEMPLATE/privileged.yml

@@ -42,8 +42,8 @@ body:
         - label: langchain-mistralai
         - label: langchain-nomic
         - label: langchain-ollama
+        - label: langchain-openrouter
         - label: langchain-perplexity
-        - label: langchain-prompty
         - label: langchain-qdrant
         - label: langchain-xai
         - label: Other / not sure / general

.github/ISSUE_TEMPLATE/task.yml

@@ -113,8 +113,8 @@ body:
         - label: langchain-mistralai
         - label: langchain-nomic
         - label: langchain-ollama
+        - label: langchain-openrouter
         - label: langchain-perplexity
-        - label: langchain-prompty
         - label: langchain-qdrant
         - label: langchain-xai
         - label: Other / not sure / general

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,6 +1,11 @@
-(Replace this entire block of text)
+Fixes #
+
+<!-- Replace everything above this line with a 1-2 sentence description of your change. Keep the "Fixes #xx" keyword and update the issue number. -->
 
 Read the full contributing guidelines: https://docs.langchain.com/oss/python/contributing/overview
+
+> **All contributions must be in English.** See the [language policy](https://docs.langchain.com/oss/python/contributing/overview#language-policy).
+
 If you paste a large clearly AI generated description here your PR may be IGNORED or CLOSED!
 
 Thank you for contributing to LangChain! Follow these steps to have your pull request considered as ready for review.
@@ -16,7 +21,7 @@ Thank you for contributing to LangChain! Follow these steps to have your pull re
 2. PR description:
 
   - Write 1-2 sentences summarizing the change.
-  - If this PR addresses a specific issue, please include "Fixes #ISSUE_NUMBER" in the description to automatically close the issue when the PR is merged.
+  - The `Fixes #xx` line at the top is **required** for external contributions — update the issue number and keep the keyword. This links your PR to the approved issue and auto-closes it on merge.
   - If there are any breaking changes, please clearly describe them.
   - If this PR depends on another PR being merged first, please include "Depends on #PR_NUMBER" in the description.
 
@@ -28,7 +33,7 @@ Thank you for contributing to LangChain! Follow these steps to have your pull re
 
 Additional guidelines:
 
-  - We ask that if you use generative AI for your contribution, you include a disclaimer.
+  - All external PRs must link to an issue or discussion where a solution has been approved by a maintainer, and you must be assigned to that issue. PRs without prior approval will be closed.
   - PRs should not touch more than one package unless absolutely necessary.
   - Do not update the `uv.lock` files or add dependencies to `pyproject.toml` files (even optional ones) unless you have explicit permission to do so by a maintainer.
 

.github/actions/uv_setup/action.yml

@@ -27,7 +27,7 @@ runs:
   using: composite
   steps:
     - name: Install uv and set the python version
-      uses: astral-sh/setup-uv@v7
+      uses: astral-sh/setup-uv@0ca8f610542aa7f4acaf39e65cf4eb3c35091883 # v7
       with:
         version: ${{ env.UV_VERSION }}
         python-version: ${{ inputs.python-version }}

.github/dependabot.yml

@@ -8,4 +8,88 @@ updates:
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
+    groups:
+      minor-and-patch:
+        patterns:
+          - "*"
+        update-types:
+          - "minor"
+          - "patch"
+      major:
+        patterns:
+          - "*"
+        update-types:
+          - "major"
+
+  - package-ecosystem: "uv"
+    directories:
+      - "/libs/core/"
+      - "/libs/langchain/"
+      - "/libs/langchain_v1/"
+    schedule:
+      interval: "monthly"
+    groups:
+      minor-and-patch:
+        patterns:
+          - "*"
+        update-types:
+          - "minor"
+          - "patch"
+      major:
+        patterns:
+          - "*"
+        update-types:
+          - "major"
+
+  - package-ecosystem: "uv"
+    directories:
+      - "/libs/partners/anthropic/"
+      - "/libs/partners/chroma/"
+      - "/libs/partners/deepseek/"
+      - "/libs/partners/exa/"
+      - "/libs/partners/fireworks/"
+      - "/libs/partners/groq/"
+      - "/libs/partners/huggingface/"
+      - "/libs/partners/mistralai/"
+      - "/libs/partners/nomic/"
+      - "/libs/partners/ollama/"
+      - "/libs/partners/openai/"
+      - "/libs/partners/openrouter/"
+      - "/libs/partners/perplexity/"
+      - "/libs/partners/qdrant/"
+      - "/libs/partners/xai/"
+    schedule:
+      interval: "monthly"
+    groups:
+      minor-and-patch:
+        patterns:
+          - "*"
+        update-types:
+          - "minor"
+          - "patch"
+      major:
+        patterns:
+          - "*"
+        update-types:
+          - "major"
+
+  - package-ecosystem: "uv"
+    directories:
+      - "/libs/text-splitters/"
+      - "/libs/standard-tests/"
+      - "/libs/model-profiles/"
+    schedule:
+      interval: "monthly"
+    groups:
+      minor-and-patch:
+        patterns:
+          - "*"
+        update-types:
+          - "minor"
+          - "patch"
+      major:
+        patterns:
+          - "*"
+        update-types:
+          - "major"