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Codex, the SDKs, and the engine behind ChatGPT

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The Wire · Showcase

CODEX 0.139.0 SHIPS WITH STANDALONE WEB SEARCH AND SCHEMA PRESERVATION

By RepoJournal · Filed · About OpenAI

Code mode can now call web search directly without nesting constraints, and your tool schemas stop getting mangled by the compactor.

Codex 0.139.0 lands three productivity wins in one drop [1]. Web search now runs standalone from code mode and even from nested JavaScript tool calls, returning plaintext results you can actually work with instead of fighting through schema translation layers. The same release preserves `oneOf` and `allOf` in tool and connector input schemas, keeping larger schemas shallower when compacted so they play nicer with richer MCP tools [1]. Meanwhile, the team is hardening the foundation for what's coming next: Python SDK goal routing is getting thread-scoped notification wrappers [2] so continuation turns read as one logical operation instead of separate physical ones, and hosted Apps MCP is being routed through extensions [3] so the orchestrator can activate remote plugin components without needing filesystem or executor access. On the infrastructure side, Codex stopped mirroring user input into realtime [4], eliminating the inconsistency where `turn/start` gets duplicated but `turn/steer` doesn't, and the extension API now has direct test coverage [5] so regressions in typed state and capability adapters won't slip past.

Action items

References

  1. [1] 0.139.0 ↗ openai/codex
  2. [2] [1/6] Add Python goal routing foundation ↗ openai/codex
  3. [3] Route hosted Apps MCP through extensions (#27191) openai/codex
  4. [4] Stop mirroring Codex user input into realtime (#27116) openai/codex
  5. [5] [codex] Test extension API contracts (#26835) openai/codex

FAQ

What changed in OpenAI on June 10, 2026?
Code mode can now call web search directly without nesting constraints, and your tool schemas stop getting mangled by the compactor.
What should OpenAI teams do about it?
Upgrade to Codex 0.139.0 if you're using web search or complex MCP schemas • Audit your realtime input handling after the mirroring fix lands
Which OpenAI repositories shipped on June 10, 2026?
openai/codex

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