## New Features

- Open the agent command center with codex agents --no-daemon. The command center and session picker now mark unread results (#58238, #58239, #58263, #58264).

- Switch between connected backends from the terminal session picker and keep your drafts when switching (#58280, #58457).

- Preview local image attachments while composing on supported terminals, and open viewed local images from clickable transcript paths (#58261, #58446).

- Find API key and cloud provider options under “Sign in another way.” Enable gcp_setup_wizard to set up Google Cloud Vertex AI with Application Default Credentials or a credential file (#57857, #58427).

- Opt into macOS or Windows system proxy settings from /experimental (#58157).

- Expand patch details directly in the transcript while an approval prompt is open (#58281).

## Bug Fixes

- Saved chats stay visible after you switch model providers. If a chat can’t resume, you can read its transcript and prepare an editable prompt to continue in a new chat (#58202).

- Ctrl+L clears the terminal display while keeping earlier messages available through Ctrl+T (#58266).

- Deleting text that exposes a leading ! keeps an ordinary draft in chat mode (#58412).

- Network approval prompts close when their requests end. Concurrent requests to the same endpoint prompt one at a time (#58350, #58351).

- Long realtime V3 conversations save completed speech to chat history as the transcript grows (#58221).

- Automatic context compaction now accounts for retained output from failed responses and responses with missing token usage data (#58404).

## Documentation

- The app-server README covers managed network constraints under [permissions.network] and prompt-user command rules that require fresh human approval (#58045, #58182).

- The openai-docs skill recommends the documented replacement when migrating away from a deprecated model (#58134).

## Chores

- DotSlash manifests now reference the Cargo packages shipped with the release (#58717, #58757).

- Linux musl builds use fewer allocator arenas to reduce idle memory after conversations unload (#58399).

## Changelog

Full Changelog: [rust-v0.166.0...rust-v0.167.0](https://github.com/openai/codex/compare/rust-v0.166.0...rust-v0.167.0)

- #57848 Add bounded Code Mode output collection and rendering @seanh-oai

- #57850 Wire bounded output collection into the code mode runtime @seanh-oai

- #57855 Load TUI plugin mentions from installed plugins @zamoshchin-openai

- #57857 Add Google Cloud Vertex AI setup to TUI onboarding @alexsong-oai

- #57859 Extend the provider OAuth sign-in timeout to ten minutes @smurching-oai

- #57861 Skip resource template discovery for hosted Apps @khong-oai

- #57862 Keep resume picker pagination moving across backends @bc-openai

- #57864 Allow upstream interruption when canceling Responses Lite turns @liame-oai

- #57866 Retry transient environment startup failures on the next turn @pansul47-oai

- #57870 Enable server-side output truncation for Code Mode sessions @seanh-oai

- #57876 Reuse the cached runtime keymap for default configuration @bc-openai

- #57883 Preserve status-line hyperlinks through footer layout and animations @joesavona

- #57970 Add an experimental UI tree renderer for the status line @joesavona

- #57974 Apply session plugin overrides during MCP config refresh @TAFOYA-OAI

- #57978 Add per-chat leases for shared MCP connections @charliemarsh-oai

- #57985 Skip read-only volume-root expansion in the MXC sandbox @iceweasel-oai

- #58013 Fix argument comment lint tests after rust-clippy branch rename @seanh-oai

- #58025 Add trace-safe diagnostics for Noise relay request progress @apanasenko-oai

- #58028 Add direct Guardian review of recorded exec calls @swastik-oai

- #58034 Add an option to disable successful SSE delta logs @jif-oai

- #58040 Preserve native tool-call evidence through Guardian review @ioanbudea-OAI

- #58045 Add managed command checkpoints requiring fresh human approval @jif-oai

- #58057 Initialize native_call in agent host test fixtures @jif-oai

- #58071 Share the Guardian context delivery token limit @ioanbudea-OAI

- #58075 Use serving assessments for adaptive Guardian review @jif-oai

- #58083 Use a dedicated binary for Bazel schema generation @jif-oai

- #58091 Update default models for memory extraction and consolidation @jif-oai

- #58110 Ignore RUSTSEC-2026-0418 for the Windows-only libz-sys dependency @swastik-oai

- #58119 Add experimental Guardian review for injected thread commands @swastik-oai

- #58121 Centralize provider request preparation auth checks @sgarg-oai

- #58122 Add an incremental exec tools feature flag @akira-oai

- #58123 Add validated elastic section budget configuration for Guardian @ioanbudea-OAI

- #58125 Support negotiated server-side truncation in Code Mode clients @seanh-oai

- #58127 Honor the tooltip preference for TUI startup help @imac-oai

- #58129 Persist subagent relationships before creating child storage @radai-oai

- #58130 Support pasted search text in the skills toggle view @xma-oai

- #58134 Prefer documented replacements for deprecation-driven model migrations @kkahadze-oai

- #58140 Route standalone web search through the thread's workspace context @sgarg-oai

- #58144 Record additional context counts, sizes, and truncation metrics @akira-oai

- #58147 Return standalone web search failures to the model @sgarg-oai

- #58157 Expose system proxy support as an experimental setting @abhinav-oai

- #58159 Add a feature flag for code-mode host output truncation @seanh-oai

- #58161 Include tool names and annotation hints in MCP approval metadata @brisebois-oai

- #58165 Keep remote plugin bundle URLs out of diagnostics @mzeng-openai

- #58166 Make rollout recording failures and completion explicit @cassirer-openai

- #58168 Create missing parent directories for MXC deny paths on Windows @iceweasel-oai

- #58171 Stabilize cancellation and tracing tests @aakash-oai

- #58172 Validate trace completion records and payload UTF-8 during replay @cassirer-openai

- #58182 Support managed network requirements under permissions.network @viyatb-oai

- #58189 Use turn-scoped permissions for standalone web search @sayan-oai

- #58190 Allow providers to opt into Cyber access programs @jamy-OAI

- #58195 Preserve remote read compatibility with older executors @dkovalenko-oai

- #58196 Require Bazel release artifacts and publish DotSlash manifests @dkovalenko-oai

- #58198 Centralize TOML config deserialization @dkovalenko-oai

- #58202 Keep chats accessible across model provider changes @abhinav-oai

- #58219 Add file-backed storage for gateway OAuth credentials @alexsong-oai

- #58221 Preserve realtime V3 transcripts in conversation history @guinness-oai

- #58237 Preserve unrelated side conversations when archiving or deleting threads @etraut-openai

- #58238 Enable the agent command center for embedded sessions @etraut-openai

- #58239 Enable the agent command center in embedded mode @etraut-openai

- #58240 Enable TUI task tools for embedded app-server sessions @etraut-openai

- #58241 Update mio from 1.2.0 to 1.2.4 @euroelessar

- #58251 Reload remote executor credentials safely across token rotation @tgrue-openai

- #58260 Reuse LocalImageAttachment throughout the TUI composer @etraut-openai

- #58261 Add local image thumbnails to the TUI composer @etraut-openai

- #58263 Show unread results in the TUI command center @etraut-openai

- #58264 Show unread sessions and acknowledge viewed transcripts in the picker @etraut-openai

- #58266 Preserve transcript history when clearing the terminal with Ctrl+L @xma-oai

- #58270 Recognize Rex terminals and enable Kitty graphics for pets @etraut-openai

- #58280 Reuse connected backends in the in-app resume picker @bc-openai

- #58281 Allow inline patch review during approval prompts @etraut-openai

- #58324 Treat auth reload failures as transient during token refresh @jif-oai

- #58341 Add an MCP adapter for message-board tools @jif-oai

- #58343 Preserve fallback token refreshes when the keyring is unreadable @jif-oai

- #58350 Resolve network approval prompts when their requests end @charliemarsh-oai

- #58351 Serialize manual network approval prompts per endpoint @charliemarsh-oai

- #58352 Allow Apps catalog discovery before the initial tool inventory completes @bkotsopoulos

- #58355 Fix remote executor authentication timeout recovery @jif-oai

- #58357 Extract pre-tool-use hook handling into a helper @swastik-oai

- #58361 Preserve model metadata origin through runtime resolution @ioanbudea-OAI

- #58368 Apply PreToolUse hooks before direct Guardian review policy checks @swastik-oai

- #58378 Scope agent MCP metadata to a host-selected plugin registration @rhan-oai

- #58380 Broadcast thread section changes to connected clients @charliemarsh-oai

- #58381 Fix unsettled refresh detection after workspace switching @jif-oai

- #58385 Test V8 inline typed array storage limits @fcoury-oai

- #58388 Add whole-entry elastic allocation for Guardian context @ioanbudea-OAI

- #58390 Expose parent context for host-managed child startup @rhan-oai

- #58395 Add scoped host metadata hooks for MCP tool requests @rhan-oai

- #58399 Reduce jemalloc arena count for Linux musl builds @dkovalenko-oai

- #58403 Run package updates outside the project on non-Windows platforms @viyatb-oai

- #58404 Fix context token estimates for responses without usable usage @dkovalenko-oai

- #58405 Add an option to suppress incremental model change announcements @chetan-oai

- #58406 Add host-inherited thread instructions and execution policies @rhan-oai

- #58410 Enable deferred tool world state by default @adaley-openai

- #58411 Expose non-consuming input activity waits to hosts @rhan-oai

- #58412 Keep exposed leading bangs literal in the chat composer @xma-oai

- #58418 Simplify recorded exec command review @swastik-oai

- #58427 Group alternative sign-in methods in a submenu @alexsong-oai

- #58428 Support app settings in plugin configuration @mzeng-openai

- #58430 Add audio file references with explicit runtime rejection @hung-oai

- #58434 Treat audio validation failures as non-retryable input errors @hung-oai

- #58436 Add interactive controls and refresh inline visualization styles @philipp-oai

- #58441 Preserve Apps usage instructions in model catalog messages @goodman-oai

- #58444 Cap Guardian context entries before elastic allocation @ioanbudea-OAI

- #58446 Make viewed image paths clickable in the TUI @etraut-openai

- #58454 Add elastic budgeting for Guardian context preparation @ioanbudea-OAI

- #58456 Preserve incomplete response output in failed inference traces @cassirer-openai

- #58457 Enable cross-backend session switching in the TUI @bc-openai

- #58459 Tighten Bazel CI snapshot handling and OTLP test cleanup @imac-oai

- #58713 Extract fresh session adoption from TUI session startup @bc-openai

- #58714 Sort agent center tasks by recency within status groups @etraut-openai

- #58716 Support OSC 52 clipboard forwarding through GNU screen @etraut-openai

- #58717 Make Bazel checks advisory and pause Bazel release artifacts @dkovalenko-oai

- #58718 Support rendering TUI conversations within an inset area @fcoury-oai

- #58719 Wire native voice dependencies into full Rust CI @bc-openai

- #58720 Prioritize pending approvals in the subagent picker @tamird

- #58722 Add naming and navigation helpers for TUI backend sessions @bc-openai

- #58727 Use local Bazel for voice release builds @fcoury-oai

- #58751 Release superseded assistant text from live paginated history @btraut-openai

- #58757 Remove Bazel outputs from DotSlash release configs @fcoury-oai