OpenAI Codex CLI — September 2025 Releases
15 releases in September 2025.
- vrust-v0.42.0 (September 26, 2025) — Notable Changes - Experimental Rust SDK–based MCP client introduced (4252)
- vrust-v0.41.0 (September 24, 2025) — Highlights: - Rate limits visibility: You can see when is your limits resetting (4111) and see your usage when rate limited (4102)
- vrust-v0.40.0 (September 23, 2025) — Notable Changes - Default model is now gpt-5-codex (4076)
- vrust-v0.39.0 (September 18, 2025) — New Features - new /review command introduced in 3774
- vrust-v0.38.0 (September 17, 2025) — This release includes only one change on top of 0.37.0, which is a fix to the npm-publish step in the release process (3806). Updating npm with the la
- vrust-v0.37.0 (September 17, 2025) — Mostly small quality-of-life fixes in this release. Highlights
- vrust-v0.36.0 (September 15, 2025) — Breaking change: OPENAIAPIKEY is no longer read from the environment API login is no longer implicit; we do not pick up OPENAIAPIKEY from the environ
- vrust-v0.35.0 (September 15, 2025) — See 0.36.0
- vrust-v0.34.0 (September 10, 2025) — 3436: hotfix for issue that prevented Codex from initializing external MCP servers Merged PRs
- vrust-v0.33.0 (September 10, 2025) — Codex 0.33.0 Key change is https://github.com/openai/codex/pull/3430, which reverts https://github.com/openai/codex/pull/3179 because it introduced a
- vrust-v0.32.0 (September 10, 2025) — Codex 0.32.0 - MCP: add UA suffix when acting as a server; a few stability/compat tweaks
- vrust-v0.31.0 (September 8, 2025) — Codex 0.31.0 - https://github.com/openai/codex/pull/3182 added support for a startuptimeoutms option when declaring an MCP server (docs), which has b
- vrust-v0.30.0 (September 5, 2025) — Codex 0.30.0 - Breaking: Stop loading project .env files automatically.
- vrust-v0.29.0 (September 3, 2025) — Codex 0.29.0 - Android/Termux support by gating arboard on unsupported targets.
- vrust-v0.28.0 (September 2, 2025) — - [Highlights] - TUI polish and stability improvements: reduced typing lag, cleaner streamed message formatting, better error handling, and improve