OpenAI Codex CLI rust-v0.84.0
OpenAI Codex CLI rust-v0.84.0 was released on .
Summary
New Features - Extend the Rust protocol/types to include additional metadata on text elements, enabling richer client rendering and schema evolution (9235) Chores - Reduce flaky Rust release pipeli...
Release Context
- This was the 5th OpenAI Codex CLI release of 2026 tracked by Havoptic.
- It shipped the same day as OpenAI Codex CLI rust-v0.81.0 (January 14, 2026).
Shipped around the same time
Within 3 days of this release, other AI coding tools also shipped:
- Claude Code v2.1.12 (January 17, 2026)
- Claude Code v2.1.11 (January 17, 2026)
- Claude Code v2.1.10 (January 17, 2026)
- GitHub Copilot CLI v0.0.384 (January 16, 2026)
- Devin Desktop v1.13.9 (January 16, 2026)
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
Release Notes
New Features - Extend the Rust protocol/types to include additional metadata on text elements, enabling richer client rendering and schema evolution (9235) Chores - Reduce flaky Rust release pipelines (notably on Windows) by increasing the release build job timeout (9242) Changelog Full Changelog: https://github.com/openai/codex/compare/rust-v0.83.0...rust-v0.84.0 - 9242 fix: increase timeout for release builds from 30 to 60 minutes @bolinfest - 9235 Add text element metadata to types @charley-oai
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