Codex CLI 0.160 ships: task-history browser, projectless sessions, smarter Guardian reviews

#What happened

Codex CLI 0.160 is out (release range rust-v0.159.0 to rust-v0.160.0, per the GitHub releases page). Headline features: browse older tasks in the agent command center with a keyboard-accessible "Show more" action; select transcript text and paste with middle-click in fullscreen mode on supported local Linux X11 terminals; start sessions outside a project with workspace defaults when policy permits, and restore saved permissions when resuming; opt-in Guardian review capabilities that can retrieve earlier user instructions and include context from agent handoffs.

#Why it matters

Unsent queued messages now resume after reconnection without duplicate sends. The terminal UI preserves server provider, reasoning-summary, and verbosity settings, and shows the correct sessions in resume and fork history. Windows sandbox fixes: PowerShell fallbacks, long-path permission repairs, suppressed background console windows. Subagents retain environments that are still starting; SQLite stalls during connection setup fixed; initialization errors surfaced instead of masked as timeouts. Explicit provider model catalogs no longer include unsupported bundled models or stale entries after refresh failures. Chores: cached plugin manifest loading, reused HTTP connections for remote plugin requests, background reclamation of unused log database space.

#Sources

• https://github.com/openai/codex/releases
• Verified October 1, 2026.