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Gemini 3.1 Pro Preview Releases
Official changelog
Release notes - Gemini API | Google AI Studio (covers all Google models)
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Questions
When was Gemini 3.1 Pro Preview released
Feb 19, 2026, per aistudio.google.com.
Where is the official Gemini 3.1 Pro Preview changelog
Release notes - Gemini API | Google AI Studio, at https://aistudio.google.com/docs/changelog.
Source: google.com, read Nov 9, 2026.