Releases · Codex
Codex CLI release notes — page 7
Stable releases of Codex CLI from the openai/codex GitHub repository, newest first. Each entry summarises the main changes and links to the full official notes; every version also has its own page. This page covers versions 0.38.0 to 0.59.0.
Latest Codex CLI version
Released · Official notes on GitHub
Short summaries here; each version has its own page with a summary of the changes and a link to the official release notes. New entries appear after a successful sync.
Codex 0.59.0
Highlights · GPT-5.1-Codex-Max: introducing our newest frontier agentic coding model. GPT-5.1-Codex-Max delivers higher reliability, faster iteration, and support for long-running, project-scale workflows. Learn more…
Official notes on GitHubCodex 0.58.0
Highlights · Support for gpt5.1 models family. Read more · App server enhancements: new JSON schema generator command, item started/completed events, macro cleanup, reduced…
Official notes on GitHubCodex 0.57.0
Highlights · TUI quality-of-life: ctrl-n/p navigation for slash command lists and backtracking skips the /status noise. · Improve timeout on long running commasnds ·…
Official notes on GitHubCodex 0.56.0
Highlights · Introducing our new model GPT-5-Codex-Mini — a more compact and cost-efficient version of GPT-5-Codex · PRs merged · 6211 fix: Update the…
Official notes on GitHubCodex 0.55.0
Highlights · 6222 reverted #6189, fixing #6220 (and other similar reports of the Codex CLI failing to start on Linux). · Merged PRs ·…
Official notes on GitHubCodex 0.54.0
⚠️ WARNING: Attempting to pin musl 1.2.5 for DNS fixes in #6189 turned out to be the wrong fix. We reverted it in #6222…
Official notes on GitHubCodex 0.53.0
Highlights · Fixing error 400 issues · Improve sandboxing for Java · PRs · 5897 – codex: add developer instructions · 5939 – app-server:…
Official notes on GitHubCodex 0.52.0
Highlights · TUI polish: queued messages visible during streaming; Windows auto-mode guidance; undo op; compaction prompt configurable. · Images: client-side image resizing; prevent crashes…
Official notes on GitHubCodex 0.50.0
Highlights · Improved /feedback to get better diagnostics. Please use it to report any issues. (#5661, #5663). · Merged PRs · 5536 — Added…
Official notes on GitHubCodex 0.49.0
Highlights · No major changes comparing to v0.48.0 - v0.49.0 is used for testing homebrew upgrade script.
Official notes on GitHubCodex 0.48.0
Highlights · --add-dir to add an additional working directory. · Many MCP improvements: · stdio servers now use a new client backed by the…
Official notes on GitHubCodex 0.47.0
Highlights · Improvements and bug-fixes in Codex CLI · Code signing binaries on MacOS · Auto update banner · :new: Warning when enabling "full…
Official notes on GitHubCodex 0.46.0
Highlights · Improved MCP support · We are in the middle of significantly improving support for connecting to MCP servers including support for streamable…
Official notes on GitHubCodex 0.45.0
Breaking changes · codex login --api-key was replaced with codex login --with-api-key that reads the key from stdin to improve security. · Sample usage:…
Official notes on GitHubCodex 0.44.0
Highlights: · New UI refresh! Updated chat composer, bottom pane, model picker, and upgrade nudge (#4240, #4316, #4178, #4405) · Custom prompts now support…
Official notes on GitHubCodex 0.42.0
Notable Changes · Experimental Rust SDK–based MCP client introduced (#4252) · New responses-api-proxy component to simplify and secure response handling/proxying (#4246) · Added secure…
Official notes on GitHubCodex 0.41.0
Highlights: · Rate limits visibility: You can see when is your limits resetting (#4111) and see your usage when rate limited (#4102) · You…
Official notes on GitHubCodex 0.40.0
Notable Changes · Default model is now gpt-5-codex (#4076) · Autocompaction is triggered automatically for gpt-5-codex when hitting 220k tokens (#4093) · Usage limits…
Official notes on GitHubCodex 0.39.0
new /review command introduced in #3774 · Merged PRs: · [#3874] fix: ensure cwd for conversation and sandbox are separate concerns (#3874) · [#3774]…
Official notes on GitHubCodex 0.38.0
This release includes only one change on top of 0.37.0, which is a fix to the npm-publish step in the release process (#3806). Updating…
Official notes on GitHubAlso tracked: Codex news · Codex resets · Blog