v2.57.0 v2.58.0
pydantic/pydantic-aiOct 16, 2026 → Oct 20, 20264 days between releases
What's New
Adds ChatGPT sign-in, ElevenLabs Agents, and fixes security vulnerabilities.
Breaking Changes
- DBOS workflows using Planning with event_stream_handler may not recover; finish in-flight workflows first.
New Features
- New openai-chatgpt provider for ChatGPT sign-in
- New ElevenLabsAgentsRealtimeModel for realtime sessions
- Message storage optimization in SqliteStepStore and PostgresStepStore
- New DelegationTasks.steer method for controlling delegated tasks
- Added ModelSettings['max_retries']
Improvements
- Security fix for UI adapter history allowing unauthorized tool execution
- Security fix for MCP telemetry exposing credentials in traces
- Updated compatibility notes for handling suspended states
Upgrade Notes
DBOS workflows using Planning with event_stream_handler may not recover; let in-flight workflows finish first. Rotate exposed MCP credentials and restrict access to historical traces.
The Two Releases
v2.57.0 (2026-10-15)
Oct 16, 2026· 6 days ago
This release introduces support for Meta Muse models via the Responses API and enhances real-time streaming capabilities for GPT-Live and Gemini Live. It also improves MCP (Model Context Protocol) integration and introduces a new `ApprovalReviewer` for safer tool execution.
Full release notesv2.58.0 (2026-10-19)
Oct 20, 2026· 2 days ago
This release brings a wide array of new features including support for ChatGPT sign-in, ElevenLabs Agents, and message storage optimizations. It also resolves a security vulnerability in UI adapters and updates compatibility notes for DBOS workflows and RealtimeConnection.
Full release notes