• Copilot Chat: Added Gemini 2.5 Pro support to Copilot Chat, accessible in both the stable Assistant panel and the new Agent panel (beta). (#28660; thanks 0xRichardH)
• Added support for OpenAI's GPT-4.1, GPT‑4.1 mini, and GPT‑4.1 nano via Copilot Chat and OpenAI API, accessible in both the stable Assistant panel and the new Agent panel (beta). (#28708)