Codex CLI 0.99.0: Concurrent Commands & Admin Controls

TL;DR

• Shell commands now run concurrently with active turns instead of blocking
• Enterprise admins can restrict web search modes and define network constraints via requirements.toml
• App-server gains dedicated APIs for turn steering, experimental features, and agent resumption

New

• Concurrent shell execution — Direct shell commands no longer interrupt in-flight turns; they execute alongside active work without blocking.
• /statusline command — Interactively configure which metadata appears in the TUI footer.
• Sortable resume picker — Toggle between creation time and last-updated time sorting with an in-picker mode indicator.
• App-server APIs — New methods for steering active turns, listing experimental features, resuming agents, and opting out of specific notifications.
• Enterprise requirements — Restrict allowed web search modes and define network constraints through requirements.toml.
• Image format support — GIF and WebP now accepted alongside existing image formats.
• Shell environment snapshots — Enable snapshotting of shell environment and rc files for better context preservation.

Fixed

• Windows TUI sign-in — Fixed buffered keypresses causing premature exit during sign-in flow.
• MCP server failures — Required MCP servers now fail fast during start/resume instead of continuing in broken state.
• File watcher spam — Fixed bug emitting spurious skills reload events and generating massive log files.
• TUI input reliability — Long option labels wrap correctly, Tab submits in steer mode when idle, history recall preserves cursor placement, and stashed drafts restore image placeholders.
• Model-modality edge cases — Clearer view_image errors on text-only models; unsupported images stripped during model switches.
• Shell command approvals — Reduced false approval mismatches for wrapped/heredoc commands; guarded against empty command lists in exec policy.

Breaking Changes

• NPM release packaging reworked: platform-specific binaries now distributed via @openai/codex dist-tags instead of separate package names. Update your install commands accordingly.

To upgrade: npm install -g @openai/codex@latest or brew upgrade codex

Source: Codex