v2.1.0

🚀 Features Added

• Sponsor button: Added a Sponsor button on both the GitHub repository and the VS Code Marketplace listing, linking to GitHub Sponsors.
• GPT 5.5 as the default GPT model: The "GPT" quick-select now targets OpenAI's mainline GPT 5.5, replacing the previous GPT 5.3 Codex entry, with a faster gpt-5.4-mini tier.

🐛 Bug Fixes

• Valid fast-tier GPT fallback: The bundled model fallback no longer points the GPT fast (haiku) tier at a non-existent openai/gpt-5.5-mini. It now uses openai/gpt-5.4-mini, matching what the live resolver selects.

🔧 Technical Improvements

• OpenAI model resolver retargeted: model-updater.ts now resolves the OpenAI quick-model against mainline openai/gpt-<version> and openai/gpt-<version>-mini slugs instead of the -codex / -codex-mini variants.

Artifact: claude-code-chat-2.1.0.vsix