OpenAI Codex CLI rust-v0.55.0

OpenAI Codex CLI rust-v0.55.0 was released on .

Summary

Highlights 6222 reverted 6189, fixing 6220 (and other similar reports of the Codex CLI failing to start on Linux).

Release Context

  • This was the 50th OpenAI Codex CLI release of 2025 tracked by Havoptic.
  • It shipped the same day as OpenAI Codex CLI rust-v0.54.0 (November 4, 2025).

Shipped around the same time

Within 3 days of this release, other AI coding tools also shipped:

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

View original release

Other Recent OpenAI Codex CLI Releases

All OpenAI Codex CLI releases · All AI coding tool releases on Havoptic