Merge branch 'main' into PYTHON-5401

Author: Jibola

.github/workflows/codeql.yml

@@ -43,7 +43,7 @@ jobs:
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@e12f0178983d466f2f6028f5cc7a6d786fd97f4b # v4
+      uses: github/codeql-action/init@fdbfb4d2750291e159f0156def62b853c2798ca2 # v4
       with:
         languages: ${{ matrix.language }}
         build-mode: ${{ matrix.build-mode }}
@@ -60,6 +60,6 @@ jobs:
         pip install -e .
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@e12f0178983d466f2f6028f5cc7a6d786fd97f4b # v4
+      uses: github/codeql-action/analyze@fdbfb4d2750291e159f0156def62b853c2798ca2 # v4
       with:
         category: "/language:${{matrix.language}}"

.github/workflows/zizmor.yml

@@ -18,4 +18,4 @@ jobs:
         with:
           persist-credentials: false
       - name: Run zizmor
-        uses: zizmorcore/zizmor-action@9d985c6a33094e632ee3e60d1924caa8588dc5db
+        uses: zizmorcore/zizmor-action@2016d147fb345c0d46c9a5236e241422b93fbbca

.gitignore

@@ -6,6 +6,7 @@ __pycache__
 .env
 .venv*
 .local_atlas_uri
+.ipynb_checkpoints
 docs/langchain_mongodb
 docs/langgraph_checkpoint_mongodb
 docs/index.md

libs/langchain-mongodb/.gitignore

@@ -2,10 +2,17 @@
 
 ---
 
+## Changes in version 0.9.0 (2025/12/03)
+
+- Add visualization support to `MongoDBGraphStore` with optional `langchain_mongodb[viz]`.
+- Add `search_by_vector` method to `MongoDBAtlasVectorSearch`.
+- Add support for passing additional vector index options to the vector search index definition and related functions.
+
 ## Changes in version 0.8.0 (2025/11/18)
 
 - Update dependencies to align with LangChain 1.0, which is now the minimum supported version of LangChain.
   This includes adding `langchain_classic` as a dependency to support existing Retriever APIs.
+- Drop support for Python 3.9.
 
 ## Changes in version 0.7.2 (2025/10/30)