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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-v0.157.0Sep 25, 2026

Added GPT-6 Sol and Luna, including Amazon Bedrock support and migration prompts for older models. (#47332, #47347)

  • Enabled fullscreen transcripts by default and added Shift-click to extend text selections. (#47178, #47414)
  • Enabled automatic background-server startup for eligible interactive sessions, with recovery choices when server settings are incompatible. (#47179, #47318)
  • Added an `f` shortcut to fork conversations open in another app, preserving drafts and queued prompts. (#47185)
  • Made `/import` available in remote sessions and local background-server sessions. (#47317)
  • +133 more changes
Read the full release note

New Features

  • Added GPT-6 Sol and Luna, including Amazon Bedrock support and migration prompts for older models. (#47332, #47347)

  • Enabled fullscreen transcripts by default and added Shift-click to extend text selections. (#47178, #47414)

  • Enabled automatic background-server startup for eligible interactive sessions, with recovery choices when server settings are incompatible. (#47179, #47318)

  • Added an f shortcut to fork conversations open in another app, preserving drafts and queued prompts. (#47185)

  • Made /import available in remote sessions and local background-server sessions. (#47317)

  • Improved terminal rendering with Unicode bullets, checkboxes, aligned equations, and optimization notation. (#47191, #47322)

Bug Fixes

  • Preserved active voice conversations when switching threads. (#47381)

  • Recovered unsent question answers into the composer when turns end, without disrupting active history searches. (#47422, #47423)

  • Respected tmux mouse settings and restored native scrollback for Terminal.app over SSH in automatic screen mode. (#47399, #47417)

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