New /config panel searches preferences across categories and flags which changes need a restart, and sending a follow-up while Codex is responding now steers it immediately, with interrupts stopping active Code Mode cells and nested tool calls. Also restarts managed background servers from /daemon, adds a configurable leader key in /keymap, and enables Daybreak by default for eligible accounts.
Codex Changelog
npx @buildinternet/releases get openai-codex-changelog215
stable releases
A structured history of OpenAI Codex
Release notes organized into searchable records with dates, versions where available, and links to the original updates.
About the data
Indexed by Release Notes Index · Original source
Access is paginated. Historical coverage varies; original notes belong to their publisher.
Effective October 14, 2026 at noon PDT, GPT-5.5 retires from Codex for users signed in with ChatGPT, while the OpenAI API and API-key-authenticated Codex sessions are unaffected. Workspace defaults, saved model settings, managed configurations, custom agents, scheduled tasks, and scripts still selecting gpt-5.5 should be updated to GPT-6.1 Sol (gpt-6.1-sol).
Composer predictions adds autocomplete-style suggestions for the next message in the Codex desktop app, using the current conversation to propose a follow-up prompt that can be accepted with Tab as an editable draft without sending it. The beta is available to users 18 and older with personal ChatGPT Pro plans in supported regions, in local and SSH threads with GPT-6 Astra and GPT-6.1 Sol.
Fixed a TUI crash when asynchronous questions contain multiple lines, now preserving line breaks and complete hyperlink destinations. Startup failures caused by feature-setting differences between a running background server and CLI defaults are also fixed, with compatibility checks now applying only to explicit command-line feature overrides.
Adds tools for creating and listing managed Git worktrees from trusted local projects when the worktrees feature is enabled, plus /copy for navigating and copying transcript blocks, Ctrl+Insert to copy selections, and tui.mouse_scroll_speed for mouse-wheel scrolling. Fixed Linux sandbox startup with multiple denied files and restored ordinary drive-letter file access on Windows 10.
Fixed queued messages getting stuck on Sending and restored Steer in secondary app windows. Scrolling and file navigation in the Changes panel were improved, and a tool call needing approval while chat permissions block approval requests now shows clearer recovery guidance with a link to those permissions.
Ultrafast mode speeds up token generation with GPT-6.1 Sol in Codex and ChatGPT Work, available on Pro $500 and eligible Enterprise and Edu plans. Enterprise access is off by default and workspace owners must enable it; inference residency is supported in the United States and Europe (EEA + Switzerland).
Fixed Windows sandbox refresh failures after app updates and worktree creation and chat forking for WSL repositories whose paths conflicted with Windows directories. Also keeps the recent chats section collapsed when switching between chats, and Remove from section now unpins the chat from its sidebar section.
GPT-6.1 Sol is now the default model in the bundled and Amazon Bedrock catalogs, and Daybreak is now opt-in via --enable cli_daybreak or features.cli_daybreak=true, with controls, indicators, and /daybreak hidden and automatic Cyber routing omitted by default. Also added /mcp login <name> for signing in to MCP servers, per-turn Cyber access program selection via codex exec --cyber-access-program, and voice input/output device selection with locally saved preferences.
Page previews now render inline in responses, and Codex task links can be opened directly on iOS. The approval picker is redesigned with clearer permission choices, plugins are reachable from a single Plugins entry in the composer's plus menu, and worktree support now matches the checkout used on desktop.
Remote stdio MCP servers with explicitly configured remote environment variables now preserve SYSTEMROOT, TEMP, and TMP, so Unix hosts retain the Windows executor's startup environment. The fix is backported to the 0.160 line.
New Home Screen widgets show recent tasks from selected computers and track remaining usage and reset times on Home and Lock Screens, plus a setting to keep the keyboard open after sending. Fixed missing tasks when loading or scrolling task lists, and canceling a queued prompt now returns recoverable text and attachments to the composer.
Selected chats can now be moved to a project at once, and large diffs no longer appear blank at some zoom levels. Worktree attachment recovery and retries for failed queued messages or chat opens were also improved.
The terminal UI now preserves server provider, reasoning-summary, and verbosity settings and shows correct sessions in resume and fork history, and queued messages resume after reconnection without duplicate sends. Also added opt-in Guardian review context retrieval and a keyboard-accessible "Show more" action for browsing older tasks.
Eligible local sessions signed in with ChatGPT can now show optional reminders to complete account security setup.
GPT-6.1 Sol is available via gpt-6.1-sol, offering near-Astra performance for complex, long-running work across code, apps, and documents at lower cost than Astra. Availability depends on plan, client, and workspace settings.
Suppressed console windows flashing on Windows when Codex launches background processes and sandboxed commands.
Automatic follow-up prompt suggestions and the tui.prompt_suggestions setting were removed, and the bundled plugin-creator skill is gone. Opt-in instant_interrupt lets new input steer Codex during model responses or long-running code-mode calls, with fixes for Windows console windows, transcript copy formatting, and macOS TLS in network-enabled sandboxes.
Terminal startup in attached worktrees is improved and failures caused by unavailable worktree environment settings are fixed. Earlier answers now stay visible when sending new instructions during a task, and keyboard navigation through messages no longer jumps back to the latest response.
Terminal input approval is now enabled by default for commands running with elevated permissions, and runtime-only grants no longer trigger unnecessary reviews. Also added MCP server support for pre-registered OAuth client secrets, bearer-token auth for exec-server WebSockets, copy-on-select and right-click paste in the fullscreen TUI, and fixes for Windows and Linux sandbox failures.

