v0.4.0.dev12

Important Changes

• run and run_stream now support a list of messages as task input.
• Introduces AgentEvent union type in AgentChat, for all messages that are not meant to be consumed by other agents. Replace AgentMessage with AgentEvent | ChatMessage union type in your code, e.g., in your custom selector function for SelectorGroupChat and processing code for TaskResult.messages.
• Introduce ToolCallSummaryMessage to ChatMessage for tool call results from agents. Read AssistantAgent Doc
• Introduce ModelContext parameter for AssistantAgent, allow usage of BufferedChatCompletionContext to limit context window size sent to model.
• Introduce ComponentConfig and add configuration loader for ChatCompletionClient. See Component Config
• Moved autogen_core.tools.PythonCodeExecutorTool to autogen_ext.tools.code_execution.PythonCodeExecutionTool.
• Documentation updates.

Upcoming Changes

• Deprecating @message_handler. Use @event or @rpc to annotate handlers instead. @message_handler will be kept with a deprecation warning until further notice. #4828
• Token counting mechanism bug fixes #4719

New Contributors

• @hsm207 made their first contribution in #4655
• @iamarunbrahma made their first contribution in #4500
• @inbal2l made their first contribution in #4717
• @r-bit-rry made their first contribution in #4759
• @jspv made their first contribution in #4755
• @akurniawan made their first contribution in #4681
• @lanbaoshen made their first contribution in #4767
• @srjoglekar246 made their first contribution in #4801
• @richard-gyiko made their first contribution in #4826
• @kimmywork made their first contribution in #4732

Full Changelog: v0.4.0.dev11...v0.4.0.dev12