This week in Codex · May 17, 2026
OpenAI Codex CLI: Three Alpha Releases Drop in Quick Succession
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OpenAI pushed three rapid alpha builds of the Rust-based Codex CLI this week, tagging rust-v0.134.0-alpha.1 through alpha.3 in close succession. The release notes are sparse, but the cadence signals active development on the Rust rewrite of the agent. If you are tracking the Rust CLI for production evaluation, now is a good time to pull the latest alpha and file issues before the stable 0.134.0 lands. Pin your install to alpha.3 for the most current fixes.
Claude Code & CLI
Codex Rust CLI 0.134.0-alpha.1 Released
- The first alpha in the 0.134.0 series for the Rust-based OpenAI Codex CLI was tagged this week, opening the pre-release cycle for what will become the next stable build.
- Early adopters can pull and test this build to surface regressions ahead of the stable release.
Codex Rust CLI 0.134.0-alpha.2 Released
- A second alpha followed quickly, indicating iterative fixes or feature additions on top of alpha.1.
- Builders running the Rust CLI in automated pipelines should test this build and compare behavior against the previous alpha.
Codex Rust CLI 0.134.0-alpha.3 Released
- The third and most recent alpha in the 0.134.0 series brings the Rust CLI closer to a stable release, with OpenAI tagging builds in rapid succession this week.
- This is the recommended alpha to run if you are evaluating the Rust CLI before the stable tag lands.
Action Items
Immediate
- Upgrade your Codex Rust CLI install to rust-v0.134.0-alpha.3, the latest pre-release build.
- Run your existing agent workflows against alpha.3 and file any regressions on the openai/codex GitHub repository before the stable 0.134.0 tag lands.
- Monitor the openai/codex releases page for the stable 0.134.0 tag and plan a production upgrade accordingly.
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