Codex CLI 0.158.0-alpha.12 changelog - what changed

[removed] o1 is no longer a built-in model identifier. If you still pin it in config or scripts, switch to a current model.

Under the hood

Linux sandbox mount setup for daemon environments now lives on a dedicated path, so those mounts are handled in one place instead of being folded into the rest of sandbox bring-up.
Session state can be captured as a recovery snapshot, which is the groundwork for restoring a turn after an interruption.
Responses streaming events carry a slightly richer payload, and turn-input request types were reworked (including dropping unused sandbox-state argument plumbing).
The TUI activity-chart color palette is no longer a separate module.

If your config, profiles, or automation still select o1, update them to a supported model before upgrading.

[removed] o1 is no longer a built-in model identifier. If you still pin it in config or scripts, switch to a current model.

Linux sandbox mount setup for daemon environments now lives on a dedicated path, so those mounts are handled in one place instead of being folded into the rest of sandbox bring-up.
Session state can be captured as a recovery snapshot, which is the groundwork for restoring a turn after an interruption.
Responses streaming events carry a slightly richer payload, and turn-input request types were reworked (including dropping unused sandbox-state argument plumbing).
The TUI activity-chart color palette is no longer a separate module.

If your config, profiles, or automation still select o1, update them to a supported model before upgrading.