What happened
On Sept 25, 2026, GitHub's changelog detailed that its agentic Security Autofix now consults Copilot Memory before fixing a code-scanning alert and saves validated fix patterns (with code citations, auto-expiring after 28 days) that then inform other Copilot features including code review and the Copilot cloud agent (public preview; enterprise requires admin policy enablement).
Why it matters
This is an incremental but real step toward 'self-evidencing' agent memory in security tooling — a repaired vulnerability pattern propagates to catch the same flaw class earlier in review instead of dying in the PR. It signals how AI-for-security coding agents are becoming persistent, context-remembering tools rather than stateless helpers.
Applicability
Enterprises already using GitHub agentic autofix + Copilot Memory (Code Security/Advanced Security licenses) should enable Memory in repos with steady alert flow and watch whether recurring finding classes stop coming back; treat as preview.