[Bug] Codex CLI 0.52 fails to run due to deprecated config flags

What version of Codex is running?

codex-cli 0.52.0

What subscription do you have?

pro

Which model were you using?

gpt-5 high

What platform is your computer?

Linux 6.6.87.2-microsoft-standard-WSL2 x86_64 x86_64

What issue are you seeing?

<img width="514" height="289" alt="Image" src="https://github.com/user-attachments/assets/d2bdb989-150a-4f3f-b171-753a97ae5df5" />

What steps can reproduce the bug?

Uploaded thread: 019a37a5-fbb1-7ca1-8802-3d6e8933db11

After updating Codex CLI to version 0.52, when I run codex, the following message appears.

What is the expected behavior?

There should be no error messages when running the Codex CLI.

Additional information

After changing the following values in config.toml, the issue was resolved.
However, there was no official notice about this change — I figured it out using ChatGPT.

Previous values:

web_search = true
experimental_use_rmcp_client = true

Updated values:

rmcp_client = true
web_search_request = true