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GitHub Copilot models deprecated on October 19, 2026

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GitHub·Oct 19, 2026, 09:27 PMDeprecationMay break your integrationAI-assisted summary

Summary

Deprecated several GitHub Copilot models across all experiences (Chat, inline edits, ask, agent modes, code completions).
The deprecation takes effect on October 19, 2026, requiring users to migrate to supported models.
Impacts existing workflows that rely on the removed models.

deprecationbreakingsource healthy

Official source Last checked Oct 20, 2026, 2:01 AM

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