docs: gemini3 tool calling is temporarily disabled (#12274)

docs-gemini3-toolcalling-disabled

Author: mendonk

docs/docs/Support/release-notes.mdx

@@ -119,6 +119,11 @@ For all changes, see the [Changelog](https://github.com/langflow-ai/langflow/rel
 
     For more information, see [Upgrade the Langflow Docker image](/deployment-docker#upgrade-the-langflow-docker-image).
 
+-   Disabled tool calling for Gemini 3 preview models
+
+    Tool calling is temporarily disabled for the following Google Gemini 3 preview models:
+    `gemini-3.1-pro-preview`, `gemini-3-pro-preview`, `gemini-3-flash-preview`, and `gemini-3-pro-image-preview`.
+    
 -   Docling installation behavior differs between Desktop and OSS
 
     In Langflow 1.8.0, Docling behavior depends on how Langflow is installed.
@@ -127,7 +132,7 @@ For all changes, see the [Changelog](https://github.com/langflow-ai/langflow/rel
 
     For Langflow OSS installations with `uv pip install langflow`, Docling is included with the Langflow package.
 
-    For Langflow OSS installations with `uv pip install langflow-base`, install Docling explicitly as an extra with `uv pip install "langflow-base[docling]"` or `uv pip install "langflow[docling]"`.
+    For Langflow OSS installations with `uv pip install langflow-base`, install Docling explicitly as an extra with `uv pip install "langflow-base[docling]"`.
 
 ### New features and enhancements