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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-v0.159.3Sep 30, 2026

Eligible local sessions signed in with ChatGPT can now show optional reminders to complete account security setup. (#49744)

  • #49744 [0.159] Backport account security setup reminders for 0.159.3 @andrewgu-oai
Read the full release note

New Features

  • Eligible local sessions signed in with ChatGPT can now show optional reminders to complete account security setup. (#49744)

Changelog

Full Changelog: https://github.com/openai/codex/compare/rust-v0.159.2...rust-v0.159.3

  • #49744 [0.159] Backport account security setup reminders for 0.159.3 @andrewgu-oai
Primary source ↗
OpenAI Codex CLIrust-v0.159.1Sep 29, 2026

Added GPT-6.1 Sol as the default model in the bundled catalog and Amazon Bedrock Mantle and Runtime catalogs. (#49323, #49342)

  • #49323 [0.159] Prepare 0.159.1 release backports @andrewgu-oai
  • #49342 [0.159] Backport GPT-6.1 Sol Bedrock catalogs @celia-oai
Read the full release note

New Features

  • Added GPT-6.1 Sol as the default model in the bundled catalog and Amazon Bedrock Mantle and Runtime catalogs. (#49323, #49342)

Changelog

Full Changelog: https://github.com/openai/codex/compare/rust-v0.159.0...rust-v0.159.1

  • #49323 [0.159] Prepare 0.159.1 release backports @andrewgu-oai

  • #49342 [0.159] Backport GPT-6.1 Sol Bedrock catalogs @celia-oai

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 24, 2026

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