Codex Provider Switcher v1.0.0

Changelog

All notable changes to this project are documented here.

[1.0.0] - 2026-07-24

Added

• Native Windows WPF interface for switching Codex between the existing
  ChatGPT login and a Responses API-compatible third-party endpoint.
• Stable model_provider identity so both routes use the same Codex history
  partition.
• Windows Credential Manager storage for the third-party API key.
• Automatic config.toml backups before every switch.
• Responses API authentication and SSE compatibility test.
• Optional Codex restart after switching.
• Desktop shortcut installer.

Known limitations

• Third-party mode does not yet guarantee Codex official plugins, image
  generation, or mobile Remote support.
• The release is unsigned and may show a Windows SmartScreen warning.
• The third-party endpoint must implement the OpenAI Responses API with SSE
  streaming.