For AI agents: a documentation index is available at the root level at /llms.txt. Append /llms.txt to any URL for a page-level index, or .md for the markdown version of any page.
Added
- Python SDK:
- Custom Tools for CrewAI Flows — Agents built as CrewAI flows can now expose your own custom tools alongside the built-in platform tools.
Changed
- Python SDK:
- Breaking: Codex
transport="sdk" Removed — The transport="sdk" option has been removed. Switch to transport="stdio" (the default) or transport="ws" — both support every Codex feature.
- Default Model Updated to gpt-5.4 — All framework adapters now default to gpt-5.4 instead of gpt-4o, avoiding tool-calling failures with the older model.
- README Refocused on Rooms and Adapters — The documentation now centers on rooms and adapters, and “external agent” is renamed to “remote agent” throughout.
Fixed
- Python SDK:
- WebSocket Reconnect Resync — Surviving rooms are resynced after a reconnect, so messages are no longer missed.
- Optional Room-Deletion Handler — Agents that don’t define a room-deletion handler no longer raise an error.
- Example Configuration Fixes — Corrected configuration keys and startup issues across the Cursor, Letta, Codex, OpenCode, and Claude SDK examples.