OpenAI Codex CLI rust-v0.36.0
OpenAI Codex CLI rust-v0.36.0 was released on .
Summary
Breaking change: OPENAIAPIKEY is no longer read from the environment API login is no longer implicit; we do not pick up OPENAIAPIKEY from the environment. To use an API key programmatically, run t...
Release Context
- This was the 33rd OpenAI Codex CLI release of 2025 tracked by Havoptic.
- It shipped the same day as OpenAI Codex CLI rust-v0.35.0 (September 15, 2025).
Shipped around the same time
Within 3 days of this release, other AI coding tools also shipped:
- Gemini CLI v0.7.0-nightly.20250918.2722473a (September 18, 2025)
- Gemini CLI v0.5.3 (September 17, 2025)
- Gemini CLI v0.6.0-preview.2 (September 17, 2025)
- Claude Code v1.0.117 (September 16, 2025)
- Devin Desktop v1.12.6 (September 16, 2025)
Compare OpenAI Codex CLI: vs Claude Code · vs Cursor · vs Gemini CLI · vs Kiro CLI · vs GitHub Copilot CLI · vs Devin Desktop · vs Antigravity CLI
Other Recent OpenAI Codex CLI Releases
- rust-v0.144.6 (July 18, 2026)
- rust-v0.144.5 (July 16, 2026)
- rust-v0.144.4 (July 14, 2026)
- rust-v0.144.3 (July 13, 2026)
- rust-v0.144.2 (July 13, 2026)
All OpenAI Codex CLI releases · All AI coding tool releases on Havoptic