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Claude Sonnet 5.5 in GitHub Copilot
GitHub | Published Monday 28 Sep 2026
SOURCE GitHub, Claude Sonnet 5.5 in GitHub Copilot
Claude Sonnet 5.5 is generally available in GitHub Copilot for Pro, Pro+, Max, Business, and Enterprise users.
Added to The Deploy Log Monday 28 Sep 2026 .
20 rows from GitHub in The Deploy Log are dated on or before this one, this one included.
It reached The Deploy Log 0 days after GitHub published it on Monday 28 Sep 2026 , the same day.
The same day from GitHub: GitHub Copilot CLI 1.0.89 (0 days apart). After it: GPT-6.1 Sol in GitHub Copilot , 1 day later.
Week of September 28, 2026 | September 2026
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Claude Sonnet 5.5: every platform it is on, dated
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