At the OpenAI DevDay event in 2026, OpenAI announced an upgrade to Codex CLI. The new version introduces a voice conversation feature, allowing users to initiate and guide tasks through direct dialogue; adds an /agents view to assign tasks to multiple agents and track progress; optimizes daily operations such as editing prompts and restoring sessions, adds built-in working tree support, and updates the terminal interface to make it more concise and long sessions more readable. This update is available for all plans.
