Modelpeers

GitHub Copilot changelog

Every change to GitHub Copilot that Modelpeers has recorded, newest first, each with the source it came from. The record starts Apr 10, 2026.

All (47)Releases (24)Retiring (5)Breaking changes (6)Prices/limits (12)

October 2026

GitHub Copilot character

Gemini 3.7 Flash, Grok 4.5 and GitHub Copilot

3 products from Google and SpaceXSI and GitHub

Retired

Copilot removes Gemini 3.7 Flash, Grok 4.5 and older GPT models

On October 19, 2026 Copilot deprecated Gemini 3.7 Flash (use Gemini 3.8 Flash), Grok 4.5 (use Grok 4.7), and GPT-5.5, GPT-5.4, GPT-5.4 mini and GPT-5 mini.

Who is affected:
Copilot users and integrations pinned to those models.
Action needed:
Switch to the suggested alternatives. Admins may need to enable them.
GitHub Copilot characterClaude Opus 5 characterClaude Opus 4.8 character

Claude Opus 4.8, Opus 5 and GitHub Copilot

3 products from Anthropic and GitHub

Retiring

Copilot to remove Claude Opus 4.8, Claude Opus 5 and GPT-5.6 Terra on November 16

Copilot will deprecate Claude Opus 4.8 and Claude Opus 5 (replace with Claude Opus 5.5) and GPT-5.6 Terra (replace with GPT-6.1 Sol or GPT-6 Luna) on November 16, 2026. Opus 4.8 stays for individual annual-plan subscribers.

Takes effect Nov 16, 2026 · in 15 days

Who is affected:
Copilot users and integrations pinned to those models.
Action needed:
Move to the suggested alternatives before November 16, 2026.
GitHub Copilot character

Claude Opus 4.7, Kimi K2.7 Code, Gemini 3.5 Flash

5 products from Anthropic and Moonshot AI and Google and GitHub

Retired

Copilot removes Claude Opus 4.7, Kimi K2.7 Code, Gemini 3.5 Flash and 3.6 Flash

GitHub removed four models from all Copilot experiences, announced on September 3. Suggested replacements are Claude Opus 5.5, Kimi K3 and Gemini 3.8 Flash.

Who is affected:
Copilot users and workflows pinned to any of the four models.
Action needed:
Switch to the suggested replacement models.

September 2026

July 2026

GitHub Copilot character

Gemini 2.5 Pro, 3 Flash and GitHub Copilot

3 products from Google and GitHub

Retired

Copilot removes Gemini 2.5 Pro and Gemini 3 Flash

GitHub removed Gemini 2.5 Pro and Gemini 3 Flash from all Copilot experiences, announced on July 2. Suggested replacements are Gemini 3.1 Pro (Preview) and Gemini 3.6 Flash.

Who is affected:
Copilot users and workflows pinned to Gemini 2.5 Pro or Gemini 3 Flash.
Action needed:
Switch to Gemini 3.6 Flash or another supported model.

4 incidents are listed on the GitHub Copilot page. Get this changelog in a feed reader with the RSS feed.