OpenAI Codex CLI rust-v0.28.0

OpenAI Codex CLI rust-v0.28.0 was released on .

Summary

- [Highlights] - TUI polish and stability improvements: reduced typing lag, cleaner streamed message formatting, better error handling, and improved input behavior.

Release Context

  • This was the 25th OpenAI Codex CLI release of 2025 tracked by Havoptic.
  • It shipped 5 days after OpenAI Codex CLI rust-v0.27.0 (August 29, 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