OpenAI Codex CLI rust-v0.66.0
OpenAI Codex CLI rust-v0.66.0 was released on .
Summary
Highlights - Execpolicy: TUI can whitelist command prefixes after an approval, sandbox denials propose an amendment you can accept, shell MCP now runs execpolicy so MCP tools follow the same rule...
Release Context
- This was the 60th OpenAI Codex CLI release of 2025 tracked by Havoptic.
- It shipped 4 days after OpenAI Codex CLI rust-v0.65.0 (December 4, 2025).
Shipped around the same time
Within 3 days of this release, other AI coding tools also shipped:
- Claude Code v2.0.67 (December 11, 2025)
- GitHub Copilot CLI v0.0.369 (December 11, 2025)
- Kiro CLI v1.22.0 (December 11, 2025)
- Devin Desktop v1.12.43 (December 11, 2025)
- Claude Code v2.0.65 (December 11, 2025)
Compare OpenAI Codex CLI: vs Claude Code · vs Cursor · vs Gemini CLI · vs Kiro CLI · vs GitHub Copilot CLI · vs Devin Desktop · vs Antigravity CLI
Release Notes
Highlights
- Execpolicy: TUI can whitelist command prefixes after an approval, sandbox denials propose an amendment you can accept, shell MCP now runs execpolicy so MCP tools follow the same rules, and
fallback checks inspect each pipeline segment so unsafe tails (e.g., | rm -rf) are still caught (#7033, #7543, #7609, #7653, #7544).
- Unified exec & shell stability: status line shows clearer progress, Windows unified-exec crash fixed, long commands wrap without breaking layout, and SSE/session cleanup reduces stuck or
dangling sessions after tool calls (#7563, #7620, #7655, #7594, #7592).
- TUI updates: cross-platform shortcut handling is consistent (Ctrl+N/P and list selection now work everywhere), so navigation matches between overlays, lists, and text areas (#7583, #7629).
- Apply-patch: Windows CRLF line endings are preserved, new e2e scenarios cover more patch shapes, and Windows-specific test coverage reduces regressions in patch flows (#7515, #7567, #7554). Thanks to @cnaples79 who contributed the core part of this fix!
- Cloud exec: codex cloud exec accepts --branch for remote runs and now exposes status/diff/apply flows so you can inspect and apply changes from the cloud path (#7602, #7614).
- Signing: Linux artifacts are signed via sigstore. (#7674).
- General fixes: parallel tool-call chat now returns correctly, ghost snapshot tokens aren’t billed, missing tool names no longer crash the litellm proxy, and migration prompts use HTTPS links
(#7634, #7638, #7724, #7705).
PRs Merged
- #6793 FIX: WSL Paste image does not work @Waxime64
- #6846 feat(core) Add login to shell_command tool @dylan-hurd-oai
- #6918 Add Enterprise plan to ChatGPT login description @ae-openai
- #7033 whitelist command prefix integration in core and tui @zhao-oai
- #7310 Inline response recording and remove process_items indirection @aibrahim-oai
- #7515 fix(apply-patch): preserve CRLF line endings on Windows @dylan-hurd-oai
- #7543 execpolicy tui flow @zhao-oai
- #7544 Refactor execpolicy fallback evaluation @zhao-oai
- #7554 chore(core): test apply_patch_cli on Windows @dylan-hurd-oai
- #7561 Do not emit start/end events for write stdin @pakrym-oai
- #7563 Slightly better status display for unified exec @pakrym-oai
- #7567 chore(apply-patch) scenarios for e2e testing @dylan-hurd-oai
- #7571 remove model_family from `config @aibrahim-oai
- #7580 feat: update sandbox policy to allow TTY @jif-oai
- #7583 Fix handle_shortcut_overlay_key for cross-platform consistency @448523760
- #7588 chore: default warning messages to true @jif-oai
- #7591 chore: tool tip for /prompt @jif-oai
- #7592 fix: release session ID when not used @jif-oai
- #7593 chore: review in read-only @jif-oai
- #7594 fix: sse for chat @jif-oai
- #7595 Update execpolicy.md @zhao-oai
- #7602 add --branch to codex cloud exec @nornagon-openai
- #7603 Add models endpoint @aibrahim-oai
- #7605 fix(app-server): add duration_ms to McpToolCallItem @owenlin0
- #7609 feat: exec policy integration in shell mcp @zhao-oai
- #7610 fix: taking plan type from usage endpoint instead of thru auth token @zhao-oai
- #7611 fix(app-server): add will_retry to ErrorNotification @owenlin0
- #7614 cloud: status, diff, apply @nornagon-openai
- #7615 chore: refactor to move Arc<RwLock> concern outside exec_policy_for @bolinfest
- #7616 Call models endpoint in models manager @aibrahim-oai
- #7617 fix: add integration tests for codex-exec-mcp-server with execpolicy @bolinfest
- #7620 Fix unified_exec on windows @pakrym
- #7621 Wire with_remote_overrides to construct model families @aibrahim-oai
- #7626 fix typo @zhao-oai
- #7629 fix(tui): add missing Ctrl+n/Ctrl+p support to ListSelectionView @pppp606
- #7634 fix: chat completion with parallel tool call @jif-oai
- #7638 fix: ignore ghost snapshots in token consumption @jif-oai
- #7645 Also load skills from repo root. @xl-openai
- #7648 Add remote models feature flag @aibrahim-oai
- #7651 fix: OTEL HTTP exporter panic and mTLS support @asm89
- #7652 Move justfile to repository root @joshka-oai
- #7653 proposing execpolicy amendment when prompting due to sandbox denial @zhao-oai
- #7654 fix: exec-server stream was erroring for large requests @bolinfest
- #7655 fix wrap behavior for long commands @zhao-oai
- #7660 Restore status header after stream recovery @joshka-oai
- #7665 docs: fix documentation of rmcp client flag @JaySabva
- #7669 fix(doc): TOML otel exporter example — multi-line inline table is invalid @448523760
- #7672 docs: Remove experimental_use_rmcp_client from config @JaySabva
- #7673 docs: point dev checks to just @voctory
- #7674 feat: linux codesign with sigstore @shijie-oai
- #7675 feat: windows codesign with Azure trusted signing @shijie-oai
- #7678 fix: clear out space on ubuntu runners before running Rust tests @bolinfest
- #7680 fix: ensure macOS CI runners for Rust tests include recent Homebrew fixes @bolinfest
- #7685 fix: refine the warning message and docs for deprecated tools config @gameofby
- #7705 fix: update URLs to use HTTPS in model migration prompts @rakleed
- #7709 Enhance model picker @aibrahim-oai
- #7711 Add formatting client version to the x.x.x style. @aibrahim-oai
- #7713 chore(deps): bump ts-rs from 11.0.1 to 11.1.0 in /codex-rs @dependabot[bot]
- #7714 chore(deps): bump derive_more from 2.0.1 to 2.1.0 in /codex-rs @dependabot[bot]
- #7715 chore(deps): bump insta from 1.43.2 to 1.44.3 in /codex-rs @dependabot[bot]
- #7716 chore(deps): bump wildmatch from 2.5.0 to 2.6.1 in /codex-rs @dependabot[bot]
- #7722 load models from disk and set a ttl and etag @aibrahim-oai
- #7724 Fixed regression for chat endpoint; missing tools name caused litellm proxy to crash @etraut-openai
- #7729 feat: add is-mutating detection for shell command handler @jif-oai
- #7745 Make the device auth instructions more clear. @mzeng-openai
- #7747 updating app server types to support execpoilcy amendment @zhao-oai
- #7748 Remove legacy ModelInfo and merge it with ModelFamily @aibrahim-oai
- #7749 fix: pre-main hardening logic must tolerate non-UTF-8 env vars @bolinfest
- #7753 Revert "feat: windows codesign with Azure trusted signing" @shijie-oai
- #7754 override instructions using ModelInfo @aibrahim-oai
- #7756 use chatgpt provider for /models @aibrahim-oai
Other Recent OpenAI Codex CLI Releases
- rust-v0.144.6 (July 18, 2026)
- rust-v0.144.5 (July 16, 2026)
- rust-v0.144.4 (July 14, 2026)
- rust-v0.144.3 (July 13, 2026)
- rust-v0.144.2 (July 13, 2026)
All OpenAI Codex CLI releases · All AI coding tool releases on Havoptic