OpenAI Codex CLIrust-v0.155.0-alpha.18Sep 17, 2026
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.
Affects up to 0.23.0 · CVE-2025-61260 · Apr 14, 2026
Fixed in 0.39.0 · CVE-2025-59532 · Sep 19, 2025
Release signals
OpenAI Codex CLIrust-v0.155.0-alpha.17Sep 17, 2026
alpha.17
Release 0.155.0-alpha.17Primary source ↗OpenAI Codex CLIrust-v0.155.0-alpha.16Sep 17, 2026
alpha.16
Release 0.155.0-alpha.16Primary source ↗OpenAI Codex CLIrust-v0.155.0-alpha.15Sep 17, 2026
alpha.15
Release 0.155.0-alpha.15Primary source ↗OpenAI Codex CLIrust-v0.155.0-alpha.14Sep 16, 2026
alpha.14
Release 0.155.0-alpha.14Primary source ↗OpenAI Codex CLIrust-v0.155.0-alpha.13Sep 16, 2026
alpha.13
Release 0.155.0-alpha.13Primary source ↗OpenAI Codex CLIrust-v0.155.0-alpha.2.6Sep 16, 2026
alpha.2.6
Release 0.155.0-alpha.2.6Primary source ↗OpenAI Codex CLIrust-v0.155.0-alpha.12Sep 16, 2026
alpha.12
Release 0.155.0-alpha.12Primary source ↗OpenAI Codex CLIrust-v0.155.0-alpha.11Sep 16, 2026
alpha.11
Release 0.155.0-alpha.11Primary source ↗OpenAI Codex CLIrust-v0.155.0-alpha.2.5Sep 16, 2026
alpha.2.5
Release 0.155.0-alpha.2.5Primary source ↗OpenAI Codex CLIrusty-v8-v152.2.0Sep 16, 2026
rusty-v8-v152.2.0
Primary source ↗OpenAI Codex CLIrust-v0.155.0-alpha.10Sep 16, 2026
alpha.10
Release 0.155.0-alpha.10Primary source ↗OpenAI Codex CLIrust-v0.155.0-alpha.9Sep 16, 2026
alpha.9
Release 0.155.0-alpha.9Primary source ↗OpenAI Codex CLIrust-v0.155.0-alpha.8Sep 15, 2026
alpha.8
Release 0.155.0-alpha.8Primary source ↗OpenAI Codex CLIrust-v0.155.0-alpha.7Sep 15, 2026
alpha.7
Release 0.155.0-alpha.7Primary 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