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Assistants/OpenAI Codex CLI

OpenAI Codex CLI

OpenAI · cli agent · paid

Lightweight coding agent that runs in your terminal (Codex CLI).

agentcliopenaicodex
Website ↗Docs ↗
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Config files OpenAI Codex CLI has changed

Config you own — hooks, permission rules, MCP servers, settings — that releases below state a change to. Counted from the release notes we track, newest change first. How a harness is layered.

skills and plugins3 changes · 9 releases touched it · latest Sep 29, 2026 · rust-v0.159.0 ↗
agent context files3 changes · latest Oct 15, 2026 · rust-v0.163.0 ↗
MCP server config2 changes · 16 releases touched it · latest Sep 9, 2026 · rust-v0.154.0 ↗
permission rules2 changes · 6 releases touched it · latest Oct 15, 2026 · rust-v0.163.0 ↗
hooks1 change · 6 releases touched it · latest Oct 15, 2026 · rust-v0.163.0 ↗
sandbox settings1 change · 6 releases touched it · latest Aug 7, 2026 · rust-v0.147.0 ↗

Security advisories

2 published for Codex CLI, from the GitHub Advisory Database.

Release signals

OpenAI Codex CLIrust-v0.150.0Aug 26, 2026

Reference other Codex tasks with `@` mentions, and ask agents to read, create, or message tasks from the terminal. (#40308, #40315)

  • `/copy` now offers a picker for full responses, individual code blocks, and blockquotes. (#39997)
  • Unnamed terminal tasks receive descriptive titles automatically, and `/rename` suggests an editable title based on the conversation. (#40492, #40495)
  • Markdown links appear as clickable labels in supported terminals, with visible URLs retained elsewhere. (#40471)
  • +160 more changes
Read the full release note

New Features

  • Reference other Codex tasks with @ mentions, and ask agents to read, create, or message tasks from the terminal. (#40308, #40315)

  • /copy now offers a picker for full responses, individual code blocks, and blockquotes. (#39997)

  • Unnamed terminal tasks receive descriptive titles automatically, and /rename suggests an editable title based on the conversation. (#40492, #40495)

  • Markdown links appear as clickable labels in supported terminals, with visible URLs retained elsewhere. (#40471)

  • Bind shortcuts to cycle permission modes, and use . in Vim mode to repeat your last edit. (#39873, #40521)

  • New Interrupt hooks can run commands or MCP handlers when an active top-level turn is interrupted. (#40511)

Bug Fixes

  • Untrusted projects no longer supply project-level AGENTS.md instructions, and managed deny-read rules remain enforced after permission changes. (#39837, #40004)

  • Improved credential redaction in app-server diagnostics, including provider, authentication refresh, and attestation fields. (#39993)

Excerpt ends here — this release continues at the source ↗.

Primary source ↗

Polled sources

[openai-developers] OpenAI Developers Codex

Product page · not polled

https://developers.openai.com/codex

[github-releases] GitHub Releases

GitHub Releases · last read Oct 25, 2026

https://github.com/openai/codex/releases