GitHub Copilot model retirements take effect
Several older models left most Copilot experiences on October 19. Users should review existing workflows.
The effective-date notice is dated October 19, 2026, following advance notice on September 18. It covers most Copilot experiences, including Chat, inline editing, ask/agent modes and code completions. Affected models include GPT-5.5, GPT-5.4 and Gemini 3.7 Flash; see the source for the complete list and alternatives. Check the model picker in VS Code or GitHub on the web. Enterprise users may need administrator enablement. This does not announce retirement from providers’ direct APIs, nor specify mobile app coverage, new prices, quotas or Traditional Chinese support. Options depend on Copilot plan, client and policies. Not tested here.
Usage conditions
- Hong Kong
- Hong Kong, Macau and Taiwan are not named in GitHub’s Copilot restricted-destination list. This does not guarantee every replacement model. Account, plan, client and admin policies still apply; local connectivity was not tested.
- Macau
- Hong Kong, Macau and Taiwan are not named in GitHub’s Copilot restricted-destination list. This does not guarantee every replacement model. Account, plan, client and admin policies still apply; local connectivity was not tested.
- Taiwan
- Hong Kong, Macau and Taiwan are not named in GitHub’s Copilot restricted-destination list. This does not guarantee every replacement model. Account, plan, client and admin policies still apply; local connectivity was not tested.
Official source: GitHub Changelog — Copilot models deprecated on October 19, 2026