## Why [#23883](https://github.com/openai/codex/pull/23883) moved user-facing `--profile` selection onto profile v2, and [#23886](https://github.com/openai/codex/pull/23886) removed the old CLI `config_profile` override path. Core still had a second legacy path: `profile = "..."` could select `[profiles.*]` values while runtime config was built. Keeping that resolver alive preserves the old precedence model and profile-carrying surfaces even though profile selection now points at `$CODEX_HOME/<name>.config.toml`. ## What - Reject legacy top-level `profile = "..."` config while loading runtime config, with an error that points callers at `--profile <name>` and `<name>.config.toml` in the [core load path](3d923366ec/codex-rs/core/src/config/mod.rs (L2524-L2531)). - Remove the remaining profile-v1 merge points from runtime config resolution, including features, permissions, model/provider selection, web search, Windows sandbox settings, TUI settings, role reloads, and OSS provider lookup. - Drop the leftover profile override surface from [`ConfigOverrides`](3d923366ec/codex-rs/core/src/config/mod.rs (L2118-L2148)) and from the MCP server `codex` tool schema. - Prune profile-precedence tests that only exercised the removed resolver and replace them with rejection coverage for the legacy selector. ## Testing - Not run in this metadata pass. - Added [`legacy_profile_selection_is_rejected`](3d923366ec/codex-rs/core/src/config/config_tests.rs (L7942-L7965)) coverage for the new runtime guard.
npm i -g @openai/codex
or brew install --cask codex
Codex CLI is a coding agent from OpenAI that runs locally on your computer.
If you want Codex in your code editor (VS Code, Cursor, Windsurf), install in your IDE.
If you want the desktop app experience, run
codex app or visit the Codex App page.
If you are looking for the cloud-based agent from OpenAI, Codex Web, go to chatgpt.com/codex.
Quickstart
Installing and running Codex CLI
Install globally with your preferred package manager:
# Install using npm
npm install -g @openai/codex
# Install using Homebrew
brew install --cask codex
Then simply run codex to get started.
You can also go to the latest GitHub Release and download the appropriate binary for your platform.
Each GitHub Release contains many executables, but in practice, you likely want one of these:
- macOS
- Apple Silicon/arm64:
codex-aarch64-apple-darwin.tar.gz - x86_64 (older Mac hardware):
codex-x86_64-apple-darwin.tar.gz
- Apple Silicon/arm64:
- Linux
- x86_64:
codex-x86_64-unknown-linux-musl.tar.gz - arm64:
codex-aarch64-unknown-linux-musl.tar.gz
- x86_64:
Each archive contains a single entry with the platform baked into the name (e.g., codex-x86_64-unknown-linux-musl), so you likely want to rename it to codex after extracting it.
Using Codex with your ChatGPT plan
Run codex and select Sign in with ChatGPT. We recommend signing into your ChatGPT account to use Codex as part of your Plus, Pro, Business, Edu, or Enterprise plan. Learn more about what's included in your ChatGPT plan.
You can also use Codex with an API key, but this requires additional setup.
Docs
This repository is licensed under the Apache-2.0 License.
