chore: release (#2044)

Author: willydouhard

CHANGELOG.md

@@ -4,16 +4,19 @@ All notable changes to Chainlit will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
-## Unreleased
+## [2.4.3] - 2025-03-23
 
 ### Added
 
 - Canvas mode for the element side bar if title == `canvas`
+- Allow list for MCP stdio commands
 - `key` parameter to `ElementSidebar.set_elements` method
 
 ### Fixed
 
 - Literal AI should now correctly store custom elements props
+- Element should correctly load from azure storage
+- Plotly elements should now take full width
 
 ## [2.4.2] - 2025-03-19
 

backend/chainlit/config.py

@@ -117,7 +117,7 @@
     sample_rate = 24000
 
 [features.mcp]
-    enabled = false
+    enabled = true
 
 [features.mcp.sse]
     enabled = true
@@ -239,7 +239,7 @@ class McpStdioFeature(DataClassJsonMixin):
 
 @dataclass
 class McpFeature(DataClassJsonMixin):
-    enabled: bool = False
+    enabled: bool = True
     sse: McpSseFeature = Field(default_factory=McpSseFeature)
     stdio: McpStdioFeature = Field(default_factory=McpStdioFeature)
 

backend/chainlit/server.py

@@ -1166,7 +1166,7 @@ async def connect_mcp(
             )
     else:
         raise HTTPException(
-            status_code=404,
+            status_code=400,
             detail="This app does not support MCP.",
         )
 

backend/chainlit/version.py

@@ -5,4 +5,4 @@
 except metadata.PackageNotFoundError:
     # Case where package metadata is not available, default to a 'non-outdated' version.
     # Ref: config.py::load_settings()
-    __version__ = "2.4.201"
+    __version__ = "2.4.3"

backend/pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "chainlit"
-version = "2.4.201"
+version = "2.4.3"
 keywords = [
     'LLM',
     'Agents',