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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
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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-v0.156.0Sep 22, 2026

Choose an optional fullscreen UI with `/tui` for your next launch, including transcript search, mouse selection, and right-click copying. (#46732, #46734, #46883, #46895)

  • Voice conversations are enabled by default, with an F8 toggle, a `/voice settings` picker, and bundled audio runtimes for Linux and Windows. (#44921, #46071, #44622, #44714, #44922)
  • Explore account usage, token totals, and plugin and skill activity through the `/usage` analytics dashboard. (#45764, #45769)
  • +135 more changes
Read the full release note

New Features

  • Choose an optional fullscreen UI with /tui for your next launch, including transcript search, mouse selection, and right-click copying. (#46732, #46734, #46883, #46895)

  • Voice conversations are enabled by default, with an F8 toggle, a /voice settings picker, and bundled audio runtimes for Linux and Windows. (#44921, #46071, #44622, #44714, #44922)

  • Explore account usage, token totals, and plugin and skill activity through the /usage analytics dashboard. (#45764, #45769)

  • Filter tasks by status and create worktree sessions from the agent command center; worktree support is now enabled by default. (#46839, #45276, #44870)

  • Customize the terminal with six new themes and view supported Mermaid diagrams and display equations directly in responses. (#46504, #46054, #45612)

  • Update the local background server through /daemon, or bypass it with --no-daemon. (#45854, #46088)

Bug Fixes

  • Preserve streamed answers and plans when turns fail, are interrupted, or receive subagent completion events. (#45549, #46867)

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