Merge branch 'master' into wip-v0.4

# Conflicts:
#	.github/workflows/_integration_test.yml
#	.github/workflows/_release.yml
#	.github/workflows/api_doc_build.yml
#	.github/workflows/people.yml
#	.github/workflows/run_notebooks.yml
#	.github/workflows/scheduled_test.yml
#	SECURITY.md
#	docs/docs/integrations/vectorstores/pgvectorstore.ipynb
#	libs/langchain_v1/langchain/chat_models/base.py
#	libs/langchain_v1/tests/integration_tests/chat_models/test_base.py
#	libs/langchain_v1/tests/unit_tests/chat_models/test_chat_models.py

Author: ccurme

.github/workflows/.codespell-exclude

@@ -1,4 +1,5 @@
 name: '🚀 Integration Tests'
+run-name: 'Test ${{ inputs.working-directory }} on Python ${{ inputs.python-version }}'
 
 on:
   workflow_dispatch:
@@ -11,6 +12,7 @@ on:
         required: true
         type: string
         description: "Python version to use"
+        default: "3.11"
 
 permissions:
   contents: read
@@ -24,7 +26,7 @@ jobs:
       run:
         working-directory: ${{ inputs.working-directory }}
     runs-on: ubuntu-latest
-    name: '🚀 Integration Tests (Python ${{ inputs.python-version }})'
+    name: 'Python ${{ inputs.python-version }}'
     steps:
       - uses: actions/checkout@v4
 

.github/workflows/_integration_test.yml

@@ -1,5 +1,5 @@
 name: '🚀 Package Release'
-run-name: '🚀 Release ${{ inputs.working-directory }} by @${{ github.actor }}'
+run-name: 'Release ${{ inputs.working-directory }} ${{ inputs.release-version }}'
 on:
   workflow_call:
     inputs:
@@ -14,6 +14,11 @@ on:
         type: string
         description: "From which folder this pipeline executes"
         default: 'libs/langchain'
+      release-version:
+        required: true
+        type: string
+        default: '0.1.0'
+        description: "New version of package being released"
       dangerous-nonmaster-release:
         required: false
         type: boolean
@@ -111,7 +116,7 @@ jobs:
             # Look for the latest release of the same base version
             REGEX="^$PKG_NAME==$BASE_VERSION\$"
             PREV_TAG=$(git tag --sort=-creatordate | (grep -P "$REGEX" || true) | head -1)
-            
+
             # If no exact base version match, look for the latest release of any kind
             if [ -z "$PREV_TAG" ]; then
               REGEX="^$PKG_NAME==\\d+\\.\\d+\\.\\d+\$"
@@ -122,7 +127,7 @@ jobs:
             PREV_TAG="$PKG_NAME==${VERSION%.*}.$(( ${VERSION##*.} - 1 ))"; [[ "${VERSION##*.}" -eq 0 ]] && PREV_TAG=""
 
             # backup case if releasing e.g. 0.3.0, looks up last release
-            # note if last release (chronologically) was e.g. 0.1.47 it will get 
+            # note if last release (chronologically) was e.g. 0.1.47 it will get
             # that instead of the last 0.2 release
             if [ -z "$PREV_TAG" ]; then
               REGEX="^$PKG_NAME==\\d+\\.\\d+\\.\\d+\$"
@@ -484,7 +489,7 @@ jobs:
         with:
           name: dist
           path: ${{ inputs.working-directory }}/dist/
-          
+
       - name: Create Tag
         uses: ncipollo/release-action@v1
         with:

.github/workflows/_release.yml

@@ -1,4 +1,5 @@
-name: '📚 API Documentation Build'
+name: '📚 API Docs'
+run-name: 'Build & Deploy API Reference'
 # Runs daily or can be triggered manually for immediate updates
 
 on:
@@ -51,23 +52,21 @@ jobs:
         run: |
           # Get unique repositories
           REPOS=$(echo "$REPOS_UNSORTED" | sort -u)
-          
           # Checkout each unique repository
           for repo in $REPOS; do
             # Validate repository format (allow any org with proper format)
             if [[ ! "$repo" =~ ^[a-zA-Z0-9_.-]+/[a-zA-Z0-9_.-]+$ ]]; then
               echo "Error: Invalid repository format: $repo"
               exit 1
             fi
-            
+
             REPO_NAME=$(echo $repo | cut -d'/' -f2)
-            
+
             # Additional validation for repo name
             if [[ ! "$REPO_NAME" =~ ^[a-zA-Z0-9_.-]+$ ]]; then
               echo "Error: Invalid repository name: $REPO_NAME"
               exit 1
             fi
-            
             echo "Checking out $repo to $REPO_NAME"
             git clone --depth 1 https://github.com/$repo.git $REPO_NAME
           done

.github/workflows/api_doc_build.yml

@@ -1,5 +1,6 @@
 name: '👥 LangChain People'
-
+run-name: 'Update People Data'
+# This workflow updates the LangChain People data by fetching the latest information from the LangChain Git
 on:
   schedule:
     - cron: "0 14 1 * *"

.github/workflows/people.yml

@@ -1,5 +1,5 @@
-name: '📝 Run Documentation Notebooks'
-
+name: '📓 Validate Documentation Notebooks'
+run-name: 'Test notebooks in ${{ inputs.working-directory  }}'
 on:
   workflow_dispatch:
     inputs:

.github/workflows/run_notebooks.yml

@@ -1,4 +1,5 @@
 name: '⏰ Scheduled Integration Tests'
+run-name: "Run Integration Tests - ${{ inputs.working-directory-force || 'all libs' }} (Python ${{ inputs.python-version-force || '3.9, 3.11' }})"
 
 on:
   workflow_dispatch:  # Allows maintainers to trigger the workflow manually in GitHub UI
@@ -161,7 +162,7 @@ jobs:
 
       - name: '🧹 Clean up External Libraries'
         # Clean up external libraries to avoid affecting git status check
-        run: | 
+        run: |
           rm -rf \
             langchain/libs/partners/google-genai \
             langchain/libs/partners/google-vertexai \

.github/workflows/scheduled_test.yml

@@ -15,7 +15,7 @@
 [![GitHub star chart](https://img.shields.io/github/stars/langchain-ai/langchain?style=flat-square)](https://star-history.com/#langchain-ai/langchain)
 [![Open Issues](https://img.shields.io/github/issues-raw/langchain-ai/langchain?style=flat-square)](https://github.com/langchain-ai/langchain/issues)
 [![Open in Dev Containers](https://img.shields.io/static/v1?label=Dev%20Containers&message=Open&color=blue&logo=visualstudiocode&style=flat-square)](https://vscode.dev/redirect?url=vscode://ms-vscode-remote.remote-containers/cloneInVolume?url=https://github.com/langchain-ai/langchain)
-[<img src="https://github.com/codespaces/badge.svg" title="Open in Github Codespace" width="150" height="20">](https://codespaces.new/langchain-ai/langchain)
+[<img src="https://github.com/codespaces/badge.svg" alt="Open in Github Codespace" title="Open in Github Codespace" width="150" height="20">](https://codespaces.new/langchain-ai/langchain)
 [![Twitter](https://img.shields.io/twitter/url/https/twitter.com/langchainai.svg?style=social&label=Follow%20%40LangChainAI)](https://twitter.com/langchainai)
 [![CodSpeed Badge](https://img.shields.io/endpoint?url=https://codspeed.io/badge.json)](https://codspeed.io/langchain-ai/langchain)
 

README.md

@@ -32,7 +32,7 @@ LangChain is partnered with [huntr by Protect AI](https://huntr.com/) to provide
 a bounty program for our open source projects.
 
 Please report security vulnerabilities associated with the LangChain
-open source projects [here](https://huntr.com/bounties/disclose/?target=https%3A%2F%2Fgithub.com%2Flangchain-ai%2Flangchain&validSearch=true).
+open source projects at [huntr](https://huntr.com/bounties/disclose/?target=https%3A%2F%2Fgithub.com%2Flangchain-ai%2Flangchain&validSearch=true).
 
 Before reporting a vulnerability, please review:
 

SECURITY.md

@@ -144,7 +144,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": null,
    "id": "kWDWfSDBMPl8",
    "metadata": {},
    "outputs": [
@@ -185,7 +185,7 @@
     "    )\n",
     "    # Text summary chain\n",
     "    model = VertexAI(\n",
-    "        temperature=0, model_name=\"gemini-2.0-flash-lite-001\", max_tokens=1024\n",
+    "        temperature=0, model_name=\"gemini-2.5-flash\", max_tokens=1024\n",
     "    ).with_fallbacks([empty_response])\n",
     "    summarize_chain = {\"element\": lambda x: x} | prompt | model | StrOutputParser()\n",
     "\n",
@@ -235,7 +235,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 6,
+   "execution_count": null,
    "id": "PeK9bzXv3olF",
    "metadata": {},
    "outputs": [],
@@ -254,7 +254,7 @@
     "\n",
     "def image_summarize(img_base64, prompt):\n",
     "    \"\"\"Make image summary\"\"\"\n",
-    "    model = ChatVertexAI(model=\"gemini-2.0-flash\", max_tokens=1024)\n",
+    "    model = ChatVertexAI(model=\"gemini-2.5-flash\", max_tokens=1024)\n",
     "\n",
     "    msg = model.invoke(\n",
     "        [\n",
@@ -431,7 +431,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 9,
+   "execution_count": null,
    "id": "GlwCErBaCKQW",
    "metadata": {},
    "outputs": [],
@@ -553,7 +553,7 @@
     "    \"\"\"\n",
     "\n",
     "    # Multi-modal LLM\n",
-    "    model = ChatVertexAI(temperature=0, model_name=\"gemini-2.0-flash\", max_tokens=1024)\n",
+    "    model = ChatVertexAI(temperature=0, model_name=\"gemini-2.5-flash\", max_tokens=1024)\n",
     "\n",
     "    # RAG pipeline\n",
     "    chain = (\n",