Users can create an environment on the web or in the ChatGPT desktop app, let Codex inspect repositories, install dependencies and tools, and test the setup before publishing it. Publishing captures the prepared filesystem for future tasks. Each new task starts in its own isolated workspace, while existing tasks keep their own files and runtime state; republishing affects new tasks rather than retroactively changing existing ones. Published environments can be used from web, mobile, or desktop, and cloud tasks can keep running while the local computer is asleep. OpenAI also says the legacy Codex Cloud experience will continue to support Code Review plus the Linear and GitHub integrations for now, but is planned for deprecation; no deprecation date has been published. Access still depends on plan and workspace settings.
Codex Cloud / 环境复用 / 工作流
Codex Cloud Adds Publishable Reusable Environments for Isolated New Tasks
Codex Cloud can now prepare repositories, dependencies, tools, and access settings as a publishable reusable environment. Each new task starts in its own isolated workspace from the prepared filesystem, reducing repeated setup work.
Original timing and sources
Event timing
OpenAI confirmed the capability in its September 28–October 2, 2026 official weekly update. The exact initial rollout date, time, and timezone were not separately published. Precision: weekly release window.
Source post / update timing
The official weekly-update page covers September 28–October 2, 2026; it does not provide a verifiable exact publication time or timezone. Precision: date range.