OpenAI Codex rust-v0.163.0

Codex CLI rust-v0.163.0 adds a searchable /config, mid-response steering, parallel read-only tools and a leader key, plus network-proxy and permission fixes.

Why it matters

A feature release of OpenAI's open-source local coding agent. It adds settings search, mid-response steering, parallel read-only tools, and several sandbox and network-proxy security fixes.

What's new

• A searchable /config that applies supported settings immediately and flags which changes need a restart.
• You can send a follow-up while Codex is responding to steer it; interrupting also stops active Code Mode cells.
• Independent read-only tools (skill, memory, conversation-history lookups) can now run in parallel. There's a configurable leader key in /keymap (default Ctrl+X).
• Security fixes: the network proxy checks permission before DNS lookups, rejects duplicate Host headers, and blocks credential aliases from bypassing inspection hooks. Resumed threads restore their permissions.
• Daybreak is enabled by default for eligible accounts. Codex no longer bundles a patched zsh.

Taken from the project's own release notes. Claims about speed or accuracy are the maker's unless stated otherwise.

Quick facts

Links

• Official site: https://developers.openai.com/codex
• Repository: https://github.com/openai/codex
• Release notes: https://github.com/openai/codex/releases/tag/rust-v0.163.0
• Docs: https://developers.openai.com/codex/ide

Related ranking

See how established tools compare in Best AI Coding Agents & IDEs. New releases aren't scored until we review them against the rubric.

Checked 2026-10-17 from the release notes's own pages. Prices and star counts change, so confirm on the official site. Listing here is not a ranking or an endorsement.