OpenAI Codex CLI rust-v0.34.0
OpenAI Codex CLI rust-v0.34.0 was released on .
Summary
3436: hotfix for issue that prevented Codex from initializing external MCP servers Merged PRs
Release Context
- This was the 31st OpenAI Codex CLI release of 2025 tracked by Havoptic.
- It shipped the same day as OpenAI Codex CLI rust-v0.33.0 (September 10, 2025).
Shipped around the same time
Within 3 days of this release, other AI coding tools also shipped:
- Claude Code v1.0.113 (September 13, 2025)
- Gemini CLI v0.5.0-preview-2 (September 12, 2025)
- Cursor v1.6 (September 12, 2025)
- Claude Code v1.0.112 (September 12, 2025)
- Gemini CLI v0.4.1 (September 11, 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