SOURCE SUMMARY
As of today, October 2, 2026, we have deprecated the following models across all GitHub Copilot experiences (including Copilot Chat, inline edits, ask and agent modes, and code completions). Model…
WHY IT MATTERS
This is an operational change, not just a product update: existing workflows may stop working or require migration. The practical impact depends on which environments are affected, whether an opt-out exists, and how much lead time users have to move.
WHAT TO VERIFY
Check the exact cutoff date, affected runtimes or products, migration path, temporary exceptions, and whether any existing workloads are grandfathered.