Add Config Option to Disable Automatic Update Checks for Restricted Environments

What feature would you like to see?

I’d like to request a feature that allows disabling automatic version update checks.
Our development environment is on a restricted network where arbitrary outbound HTTPS requests are blocked, except through a custom gateway we use for calling GPT-5 models.

Currently, Codex CLI automatically tries to perform update checks (https://api.github.com/repos/openai/codex/releases/latest), which fail and cause errors. It would be very helpful if there were a configuration flag (for example, disable_update_check: true in a config file or environment variable) that completely skips these requests.

This would allow teams like ours to run Codex CLI smoothly in secure or air-gapped environments without triggering network errors.

Would this be feasible to add in a future release?

Thanks for considering!

Are you interested in implementing this feature?

_No response_

Additional information

_No response_