[fix] a2a stream: serialize Pydantic output_schema content before str concatenation (#6936)

fix: add missing MIME types for .msg, .xlsx and .xls in AgentOS file upload (#7329)

[fix] correct SurrealDB flexible field syntax (#7303)

[cookbook] fix Slack cookbook configs: history context and MemoryManager model (#7288)

fix: else_steps are not copied for `Condition` step type (#7198)

chore: release 2.5.14 (#7282)

fix: add `inject_trailing_user_message` and `trailing_user_message_content for models that reject assistant prefill (#7304)

fix: add text/markdown mime type and fix Anthropic nested schema validation (#7287)

fix: suppress duplicate member content in Slack team streaming (#7300)

fix: use correct MIME type for image bytes in OpenAI Responses API (#7285)

fix: filter non-conversational messages from learning extraction (#7280)

feat: add workspace search tool to SlackTools (#7277)

fix: patch review bugs across fallback cookbooks, JWT middleware, and OpenAI error handling (#7299)

fix: revert IntermediateRunContentEvent changes done in teams (#7295)

feat: add fallback model support to Agent and Team (#7080)