OpenAI Codex CLI rust-v0.166.0

OpenAI Codex CLI rust-v0.166.0 was released on October 29, 2026.

Summary

Codex CLI rust-v0.166.0 is here: keyboard-driven transcript selection with search, GPT-6.1 Terra in the model catalogs, and codex queue --resume. Curious what else landed?

Release Notes

New Features - Added keyboard-driven transcript selection with word, line, and page motions, integrated search, and configurable shortcuts. (57221, 57222, 57223, 57224) - Rendered Markdown consistently in async questions, choices, answers, and transcript replies. (57259, 57292) - Added GPT-6.1 Terra to the bundled, Vertex AI, and Amazon Bedrock model catalogs. (57293) - Added codex queue --resume to resume unloaded threads after queueing a message. (57232) - Added clearer safety-block explanations and selectable safer follow-up prompts in the TUI. (57363, 57365) - Added codex doctor --network-only for focused configuration, connectivity, and WebSocket diagnostics. (57606) Bug Fixes - Preserved acknowledged approval and permission settings when resuming or forking threads. (57227) - Preserved local image attachments when restoring killed composer text. (57502) - Fixed standalone release cleanup on macOS when installations are in use or paths contain non-ASCII characters. (57503) - Restored spawned descendant threads when unarchiving their parent. (57635) - Fixed app-server thread startup and shutdown races and released completed runtimes promptly. (57787, 57788) - Improved TUI reconnection recovery, including offline /quit and /exit handling. (57820) - Preserved reasoning-token accounting across resume and fork to avoid premature compaction. (57839) Chores - Switched Bazel to source-built V8 with target-matched Rust bindings and native Windows MSVC archive support. (57164, 57269, 57644, 57832) - Shipped the standalone executor in canonical CLI and app-server release packages. (57837) - Standardized development and release builds on Node.js 24.22.1 and Rust 1.95.0. (57168, 57373) Changelog Full Changelog: https://github.com/openai/codex/compare/rust-v0.165.0...rust-v0.166.0 - 56468 Preserve SystemRoot for Windows filesystem sandbox helpers @jif-oai - 56477 Move Guardian approval reason caps into context composition @ioanbudea-OAI - 56483 Allow installed plugin metadata to skip display enrichment @bkotsopoulos - 56493 Move Guardian tool description preparation into context composition @ioanbudea-OAI - 56494 Add channel upserts to message boards @felixxia-oai - 56495 Add paginated channel subscription queries to the local message board @felixxia-oai - 56505 Defer synchronous Guardian tool-call truncation to preparation @ioanbudea-OAI - 56514 Preserve tracing context throughout tool dispatch @bkotsopoulos - 56515 Add trace instrumentation for turn startup and response streaming @bkotsopoulos - 56516 Respect server approval policy defaults during TUI startup @etraut-openai - 56524 Add turn, tool, and skill attribution to traces @bkotsopoulos - 56525 Remove the 1 MiB response limit for explicit model catalogs @eternal-openai - 56530 Record skill and plugin catalog sizes on publication @TAFOYA-OAI - 56533 Defer sync Guardian tool-output truncation to transcript preparation @ioanbudea-OAI - 56535 Extract the head-tail buffer into a utility crate @seanh-oai - 56543 Track resume picker pagination and selection metadata per backend @bc-openai - 56552 Initialize SQLite databases with DELETE journaling on NFS @dkovalenko-oai - 56553 Include environment hooks in thread hook listings @andrewgu-oai - 56554 Enable masked AWS credentials for local proxy signing @viyatb-oai - 56555 Apply sync Guardian message limits during transcript preparation @ioanbudea-OAI - 56556 Use conversations for all Guardian v2 async classification @felixxia-oai - 56557 Exercise retained sampling in Guardian transport tests @felixxia-oai - 56559 Remove Guardian snapshot-specific context helpers @felixxia-oai - 56560 Allow configuring GCP project and location in provider settings @alexsong-oai - 57164 Move the V8 Bazel build graph into Codex @seanh-oai - 57165 Enforce V8 artifact profiles at Bazel target boundaries @seanh-oai - 57166 Surface automatic marketplace update failures as startup warnings @dkovalenko-oai - 57167 Track CUA tool call starts and deduplicate lifecycle events @trpcic-openai - 57168 Centralize Node.js version selection on 24.22.1 @anp-oai - 57169 Clarify config loader APIs and share interactive login setup @smurching-oai - 57170 Update prebuilt argument-comment-lint to rust-v0.164.0 @tamird - 57171 Integrate runtime authentication into model requests @cooper-oai - 57172 Expose lifecycle timestamps on app-server thread items @charliemarsh-oai - 57174 Add scoped request-body secret substitution to MITM hooks @viyatb-oai - 57175 Integrate config-server policies with startup and authentication @smurching-oai - 57176 Defer Guardian Node REPL output truncation until prompt preparation @ioanbudea-OAI - 57178 Route FedRAMP API keys to government endpoints by default @lsingh-oai - 57179 Consolidate async header authentication in applyauthheaders @cooper-oai - 57180 Add constraint-aware standalone network proxy configuration @viyatb-oai - 57181 Add optional names to untrusted additional context @akira-oai - 57185 Centralize unified exec output rendering @anp-oai - 57186 Fail closed on unreadable glob search root metadata errors @viyatb-oai - 57187 Allow advisory rollout budgets with optional limit enforcement @nvogt-oai - 57188 Add a credential file override for GCP provider authentication @alexsong-oai - 57191 Read unified exec output directly from stdout and stderr @anp-oai - 57192 Gate capability discovery V2 on executor version @TAFOYA-OAI - 57193 Preserve failed writestdin calls in rollout trace replay @cassirer-openai - 57194 Classify rollout tool calls by their runtime handler @cassirer-openai - 57196 Isolate MCP inputs and timeouts for callers sharing a connection @charliemarsh-oai - 57197 Clarify skill toggle summaries in the TUI @fcoury-oai - 57198 Report the local command working directory in PreToolUse hooks @eternal-openai - 57199 Truncate rollout JSON summaries at UTF-8 character boundaries @cassirer-openai - 57201 Capture direct-tool critical paths behind a feature flag @taohong339 - 57202 Preserve the tool dispatch span across runtime futures @trpcic-openai - 57203 Preserve command cwd in permission and post-tool hooks @eternal-openai - 57204 Register the untrustedastooloutput feature flag @akira-oai - 57206 Ignore the crypto-bigint timing advisory in dependency checks @etraut-openai - 57207 Attribute approval waits to tool critical-path timing @taohong339 - 57208 Propagate installer download failures in standalone Unix updates @etraut-openai - 57209 Report turn critical-path timing in analytics @taohong339 - 57210 Add opt-in protocol discovery for local stdio MCP servers @charliemarsh-oai - 57211 Share eligible local stdio MCP connections across chats @charliemarsh-oai - 57212 Enable zstd compression for code-mode gRPC responses @cayoub-oai - 57215 Coordinate resume picker sources independently @bc-openai - 57218 Support negotiated WebSocket compression in the remote app-server client @thorvald-oai - 57220 Log app-server WebSocket compression statistics @thorvald-oai - 57221 Expand keyboard navigation and selection in the transcript @fcoury-oai - 57222 Integrate Find with transcript selection mode @fcoury-oai - 57223 Wire keyboard selection into transcript overlays @fcoury-oai - 57224 Fix transcript selection input routing and preserve composer drafts @fcoury-oai - 57225 Add managed enforcement of DELETE journaling on NFS @dkovalenko-oai - 57226 Allow NFS database migration with shared file permissions @dkovalenko-oai - 57227 Preserve acknowledged permissions when resuming and forking threads @charliemarsh-oai - 57228 Give remote control pairing a 35-second deadline @etraut-openai - 57229 Simplify code-mode cell completion delivery @cconger - 57232 Add optional thread resumption to codex queue @etraut-openai - 57233 Stop dotenv loading on persistent I/O errors @etraut-openai - 57234 Prevent credential collisions in registry auth test fixtures @jif-oai - 57235 Tag execcommand telemetry with the configured shell snapshot mode @jif-oai - 57238 Exercise V2 spawning in subagent context inheritance tests @tamird - 57239 Make the MCP HTTP probe timeout test deterministic @jif-oai - 57240 Bound memory baseline files and recover incomplete snapshots @dhruvgupta-oai - 57241 Honor configured message limits for encrypted guardian transcripts @ioanbudea-OAI - 57242 Reduce the default thread unload delay to one minute @jif-oai - 57243 Pause Tokio time in startup draft handoff tests @goodman-oai - 57244 Wait for process completion in the unified exec reuse test @goodman-oai - 57245 Stabilize the rejected queue message test @goodman-oai - 57247 Release the rollout maintenance lock when its guard is dropped @goodman-oai - 57248 Make login token-refresh tests wait for auth publication @goodman-oai - 57249 Allow disabling plugin discovery prefetch at app-server startup @zamoshchin-openai - 57251 Show native dollar thread usage for ENT26 plans @jif-oai - 57253 Allow slow daemon startup while detecting early process exits @etraut-openai - 57255 Record reviewed exceptions for zstd security advisories @charliemarsh-oai - 57256 Keep parent history out of attached thread views @btraut-openai - 57257 Avoid unnecessary connector directory work for tool suggestions @charliemarsh-oai - 57258 Reduce remote plugin catalog cache probing overhead @charliemarsh-oai - 57259 Render Markdown in TUI async question choices @imac-oai - 57260 Centralize permission request preparation and approval actions @swastik-oai - 57261 Separate applypatch request preparation from execution @swastik-oai - 57262 Add incremental skill catalogs behind skillcatalogdeltas @adaley-openai - 57263 Support model-catalog wording for permission path warnings @goodman-oai - 57265 Show effective processing tiers in TUI status surfaces @etraut-openai - 57267 Keep cloud conversation settings server-owned in the TUI @bc-openai - 57268 Record reasons for embedded TUI starts @etraut-openai - 57269 Add native Windows MSVC V8 source archive builds @seanh-oai - 57270 Load cloud config for sandbox and remote exec-server commands @abhinav-oai - 57271 Enable text selection and mouse scrolling in the warning viewer @imac-oai - 57272 Add code-mode output truncation protocol contracts @seanh-oai - 57273 Reject unsupported options for codex queue @etraut-openai - 57274 Defer REPL evidence rendering to synchronous context preparation @ioanbudea-OAI - 57275 Preserve image generation failure metadata for premium usage limits @jimxie-oai - 57276 Support window prefixes for extension world-state sections @fc-oai - 57277 Use the crates.io release of i18n-config @goodman-oai - 57278 Refactor agent spawning, startup, and communication helpers @rhan-oai - 57279 Render untrusted additional context as named tool outputs @akira-oai - 57280 Preserve full MCP results in rollout traces @cassirer-openai - 57281 Enable agents navigation for remote App Server sessions @etraut-openai - 57282 Promote rounded token counts to the next compact unit @etraut-openai - 57284 Express TUI mouse capture as an explicit policy @imac-oai - 57285 Let the terminal handle links in expanded questions @imac-oai - 57286 Support networkproxy in managed requirements @viyatb-oai - 57287 Preserve parent tool declarations in prediction forks @keyz - 57290 Add a plugin process host with bounded IPC and lifecycle management @joesavona - 57291 Represent user message presentation with an enum @imac-oai - 57292 Render async questions and replies with Markdown in the TUI @imac-oai - 57293 Add GPT-6.1 Terra to model catalogs @BOZHANG-OAI - 57294 Extract plugin manager errors and box realtime handoff routing @TAFOYA-OAI - 57295 Defer synchronous Guardian evidence limits to preparation @ioanbudea-OAI - 57304 Surface refresh-token rejection errors during workspace routing @smurching-oai - 57307 Bump openai/fence to v0.12.2 in the blob size policy @joesavona - 57311 Preserve tool output versions and history order in rollout traces @cassirer-openai - 57312 Centralize Guardian root context preparation @ioanbudea-OAI - 57313 Default gateway OAuth delivery to Authorization bearer tokens @smurching-oai - 57314 Format all Rust sources and clean up repository checks @joesavona - 57315 Keep failed subagents from marking tasks as needing attention @bc-openai - 57317 Add opt-in concise hints for explicitly selected plugins @adaley-openai - 57325 Add model catalog fields for granular approval templates @goodman-oai - 57342 Separate TUI session resume preparation from activation @bc-openai - 57352 Preserve child signal failures in the npm wrapper @dkovalenko-oai - 57353 Avoid object-identity preflight for MXC path grants @iceweasel-oai - 57357 Report when NFS database migration finds no databases @dkovalenko-oai - 57358 Serialize session index mutations across processes @dkovalenko-oai - 57360 Bound waits for the thread writer coordination lock @dkovalenko-oai - 57363 Explain safety policy blocks with turn-scoped recourse in the TUI @etraut-openai - 57365 Offer safer rewrites after safety blocks in the TUI @etraut-openai - 57366 Show the selected ChatGPT workspace in /status @etraut-openai - 57373 Pin the Rust toolchain to 1.95.0 @TAFOYA-OAI - 57391 Drain pending terminal reports before returning to the shell @etraut-openai - 57393 Render integral limits and parenthesized matrices in TUI math @etraut-openai - 57394 Add experimental GCP account setup to the app server @alexsong-oai - 57420 Make thread item timestamps optional in TypeScript exports @keyz - 57425 Centralize Guardian root context preparation @ioanbudea-OAI - 57430 Test goal provenance in existing workers' Guardian reviews @jif-oai - 57433 Add opt-in synchronous Guardian review for native tool calls @jif-oai - 57435 Extract unified exec command preparation into a reusable module @swastik-oai - 57438 Carry prepared commands through unified execution @swastik-oai - 57439 Preserve Guardian request metadata with custom OpenAI base URLs @jif-oai - 57441 Add Guardian native multi-agent history feature flag @jif-oai - 57448 Preserve native multi-agent calls in Guardian review history @jif-oai - 57451 Route state-changing multi-agent calls through Guardian review @jif-oai - 57452 Distinguish policy-restricted capacity failures from server overloads @toml-openai - 57455 Centralize Guardian classification of multi-agent tool calls @jif-oai - 57458 Move Guardian token usage calculation into the reviewer crate @jif-oai - 57462 Always put Code Mode tool descriptions before namespace descriptions @swastik-oai - 57468 Fix guardian handoff mocks for native history tests @jif-oai - 57474 Test encrypted native call history across Guardian reviews @jif-oai - 57476 Move Guardian session helpers into the reviewer crate @jif-oai - 57478 Move Guardian approval request types into the reviewer crate @jif-oai - 57483 Skip unrelated indexed rollouts during selected thread migration @charliemarsh-oai - 57488 Move guardian prompt composition into the reviewer crate @jif-oai - 57493 Move Guardian action JSON formatting into the reviewer crate @jif-oai - 57494 Centralize synchronous Guardian context preparation @ioanbudea-OAI - 57500 Add an option to omit descriptions from skill catalogs @adaley-openai - 57501 Render escaped percent signs in TUI math @etraut-openai - 57502 Preserve local image attachments when restoring killed text @etraut-openai - 57503 Fix macOS standalone release pruning @etraut-openai - 57504 Use the native clipboard for WSL SSH sessions with X11 forwarding @etraut-openai - 57506 Move Guardian request mappings into the reviewer crate @jif-oai - 57507 Resolve Guardian command path conventions inside ReviewAction @swastik-oai - 57508 Add a bounded V8 runtime for UI plugin processes @joesavona - 57509 Extract Guardian planned-action assembly into the reviewer crate @jif-oai - 57512 Explicitly unlock daemon PID reservation probes on Unix @jif-oai - 57513 Replace the npm wrapper with the native binary using execve @bolinfest - 57514 Add experimental ChatGPT workspace switching to app-server @dhruvgupta-oai - 57515 Limit MXC volume expansion probes to symbolic links @iceweasel-oai - 57516 Add profile and provider status line items @etraut-openai - 57519 Defer synchronous Guardian heartbeat compression to preparation @ioanbudea-OAI - 57522 Add isolated reviews to the guardian reviewer pool @swastik-oai - 57533 Release empty PID probe locks explicitly on Unix @jif-oai - 57538 Preserve host-assigned user input IDs in Responses messages @zbrunson-openai - 57542 Add model-gated literature search to standalone web search @rhan-oai - 57552 Expose and persist image generation IDs @jimxie-oai - 57553 Allow replacing dynamic tools between model steps @sdcoffey - 57554 Keep submitted prompts shaded when terminal colors are unavailable @bc-openai - 57563 Avoid retaining unneeded output items in HTTP response streams @btraut-openai - 57564 Preserve rich composer content in Vim registers @bc-openai - 57567 Allow catalog URL overrides for the built-in OpenAI provider @jamy-OAI - 57568 Configure memory consolidation service tiers independently @mandal-OAI - 57569 Preserve process output and control replies under backpressure @ztanner-oai - 57572 Support Apps tool catalogs without shared snapshots @bkotsopoulos - 57573 Add filesystem-free classification of intercepted patch commands @swastik-oai - 57575 Refactor HTTP client construction and request execution @bz-openai - 57581 Allow model catalogs to customize approval instruction headings @goodman-oai - 57584 Preserve output boundaries through token truncation @seanh-oai - 57585 Replace unavailable image references in model requests @kchainani-oai - 57586 Add host-reserved V2 child creation APIs @rhan-oai - 57589 Add a standalone codex-exec-server executable @dkovalenko-oai - 57590 Ship codex-exec-server in CLI and app-server packages @dkovalenko-oai - 57593 Remove empty local staging routing files @fcoury-oai - 57597 Preserve WebSocket probe evidence and redact diagnostic details @dob-oai - 57598 Cache empty remote skill discovery with filesystem watches @adams-oai - 57599 Support catalog headings for saved command-prefix notices @goodman-oai - 57606 Add codex doctor --network-only for focused network diagnostics @dob-oai - 57607 Share runtime authentication with model providers and catalogs @cooper-oai - 57612 Disable terminal status sequences on older VTE backends @fcoury-oai - 57615 Preserve rollout tracing across sub-agent reloads @cassirer-openai - 57618 Release sampling prompts after stream setup @btraut-openai - 57626 Show Bedrock setup for explicitly configured OpenAI providers @alexsong-oai - 57628 Stop shipping codex-exec-server in release artifacts @fcoury-oai - 57635 Restore spawned descendants when unarchiving a thread @etraut-openai - 57638 Add OpenTelemetry requirement types to the app-server protocol @arnavpatidar-OAI - 57644 Generate Rust bindings that match Bazel-built V8 archives @seanh-oai - 57649 Support managed OpenTelemetry configuration requirements @abhinav-oai - 57654 Redact OTEL exporter headers in app-server config responses @arnavpatidar-OAI - 57657 Fix trace exporter activation after account switches @arnavpatidar-OAI - 57658 Support managed OpenTelemetry metadata and PEM client identities @abhinav-oai - 57667 Remove detached delivery from review/start @yansenzhou-oai - 57692 Wait for turn profiles before asserting sampling counts in trace tests @ioanbudea-OAI - 57697 Move Guardian review state into the reviewer extension @jif-oai - 57698 Move Guardian context policy and prompts into the reviewer extension @jif-oai - 57702 Move Guardian review evidence into the reviewer extension @jif-oai - 57710 Preserve parent routing affinity for Guardian reviews @jif-oai - 57720 Move ReviewAction into the Guardian reviewer crate @jif-oai - 57723 Disable optimization for the on-demand Bazel schema generator @jif-oai - 57729 Remove freeguardian configuration from Guardian tests @ioanbudea-OAI - 57741 Separate test-only Rust sources from Bazel library and binary inputs @jif-oai - 57742 Avoid recompiling Bazel integration tests for runtime fixture changes @jif-oai - 57743 Move Guardian MCP elicitation helpers into the reviewer crate @jif-oai - 57757 Expose Guardian assessments in response streams @jif-oai - 57758 Include terminal launch commands in Guardian stdin reviews @jif-oai - 57770 Respect model catalog origins when selecting Guardian reviewers @ioanbudea-OAI - 57774 Skip non-regular files when detecting pasted image paths @etraut-openai - 57782 Restrict code-mode host replacement to session admission @aakash-oai - 57783 Exclude unrelated network shares from MXC default reads @iceweasel-oai - 57787 Fix app-server thread listener startup and shutdown races @charliemarsh-oai - 57788 Release app-server thread runtimes after shutdown @charliemarsh-oai - 57789 Refresh the model catalog once when Guardian's default reviewer is missing @jif-oai - 57790 Centralize synchronous Guardian prompt preparation @ioanbudea-OAI - 57796 Extend GitHub release read retries and add jitter @imac-oai - 57800 Backfill exec completion items through paginated history @btraut-openai - 57817 Detach realtime sideband observers without ending the session @jiahao-oai - 57818 Reduce unnecessary work in configuration processing @bc-openai - 57819 Load up to eight plugins concurrently @bc-openai - 57820 Improve TUI reconnect recovery and offline exit handling @etraut-openai - 57824 Include directly attached threads in diagnostic uploads @btraut-openai - 57825 Update CI setup to use meta/install-dotslash @seanh-oai - 57832 Build V8 from source by default in Bazel @seanh-oai - 57834 Add isolated Guardian assessments for prepared actions @swastik-oai - 57835 Limit concurrent image availability checks to eight @kchainani-oai - 57836 Declare the image generation result type in code mode @alicec-oai - 57837 Ship the standalone executor in release packages @dkovalenko-oai - 57839 Preserve reasoning token accounting across resume and fork @andrewgu-oai - 57840 Validate thread providers before resume and input @abhinav-oai - 57841 Add optional process metrics sampling for code-mode hosts @aakash-oai

View original release

Other Recent OpenAI Codex CLI Releases

• rust-v0.164.0 (October 23, 2026)
• rust-v0.163.0 (October 15, 2026)
• rust-v0.162.1 (October 9, 2026)
• rust-v0.162.0 (October 8, 2026)
• rust-v0.161.0 (October 7, 2026)

All OpenAI Codex CLI releases · All AI coding tool releases on Havoptic