The official Codex CLI 0.157.0 release changed supported interactive sessions to start a background server automatically. A Linux WSL2 user reported a daemon remaining after the window closed, an approximately 374 MB package copy and separate update process, and retention of the first session’s proxy settings. The issue requests opt-in automatic startup. The default change is confirmed by the release, but shutdown and update details remain user reports rather than established defects in every environment.