• 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)
• Agent Beta: Added scrollbar to the history view. (#28690)
• Agent Beta: Handled context window exceeded errors from Anthropic. (#28688)
• Agent Beta: Fixed error 400 INVALID_ARGUMENT when using Gemini with code_actions or rename tools enabled. (#28634)