GitHub Copilot retires Opus 4.8, Opus 5, and GPT-5.6 Terra on Nov 16
On Nov 16, 2026, GitHub Copilot drops Claude Opus 4.8, Claude Opus 5, and GPT-5.6 Terra across Chat, inline edits, ask/agent modes, and completions—move to Claude Opus 5.5 or GPT-6.1 Sol / GPT-6 Luna. Individual annual subscribers keep Opus 4.8; Business/Enterprise get the alternatives under default model enablement unless an admin turned that off.
