Image: GitHub
Why it mattersA developer who has been waiting for a run to finish before steering it now interrupts and corrects a Codex turn mid-answer, which changes how many turns a task takes.
The gap between watching a coding agent go the wrong way and being able to stop it is the gap that decides how many turns a task takes. Codex 0.163 closes it by default on every eligible account.
OpenAI tagged rust-v0.163.0 of the Codex CLI on 15 October 2026 at 21:30 UTC. The release notes list six new features, nine bug fixes, two documentation updates and three chores. Two of the features change defaults that were optional in earlier versions, which is the part a team should read first.
Instant interrupts, now the default
Pull request #51812 enables instant interrupts by default. Pull request #51835 extends the same cancellation to Code Mode cells and their nested tool calls, so interrupting a turn also stops any code the agent is in the middle of running. Before this release, a user who sent a follow-up during a turn had to wait for the current step before Codex would respond; now the follow-up steers the turn immediately. Instant interrupts first shipped as an opt-in option in Codex 0.159 three weeks ago.
A searchable settings panel
Pull request #52990 adds a /config panel to the TUI that searches preferences across categories, applies supported changes immediately, and marks the ones that need a restart. Pull request #53429 pairs it with live toggles. The release notes describe this as navigation across preferences a user previously had to find by category, so a feature flag or a theme setting is now one search away instead of one menu tree away.
Three more default-level changes
A new leader key in /keymap makes Ctrl+X the default persistent shortcut, keeps shortcut hints open until a user picks or cancels, and moves voice mute to F9. The /daemon command gains a Restart action that warns about work the restart could interrupt, then reconnects automatically. Codex now runs independent read-only tools in parallel, which the notes list as including skill, memory, and conversation-history lookups. Daybreak, the opt-in reasoning option Codex has carried in preview, is enabled by default for eligible accounts and reachable from codex exec with an OpenAI API key when the server offers access.
Bug fixes that touch the proxy and sandbox
Three network changes land together. Pull request #51650 requires hostname authorisation before a proxy DNS lookup, #53506 rejects duplicate Host headers, and #52661 stops brokered credential aliases from bypassing man-in-the-middle inspection hooks. The documentation update at #52610 renames the Linux sandbox pieces to match what Codex is actually running: bubblewrap for filesystem isolation and seccomp for syscall filtering. And #52178 strips symbols from packaged binaries, which the release notes say shrinks the Linux and macOS release packages without touching the debug symbols on the build output.
What a team using Codex should do today
Two changes affect muscle memory. A developer who had already got used to waiting for a step to finish before steering should expect the follow-up to be heard right away in a 0.163 session, which is faster but means a half-written interrupt now takes effect. And a config change that previously meant restarting the TUI often does not, because the new /config panel applies live where it can.
Source
This item was written by an AI system from the linked source. Reveneau is responsible for what it publishes.
Get AI News in your inbox
New developer tools, model and agent releases, and how teams are actually using them to release software. Short, and only when there is something worth reading.
