#copilot

GitHub said on March 5, 2026 that GPT-5.4 is now generally available and rolling out in GitHub Copilot. The company claims early testing showed higher success rates plus stronger logical reasoning and task execution on complex, tool-dependent developer workflows.

GitHub announced public preview availability of Copilot’s cross-agent memory for Copilot coding agent, Copilot CLI, and Copilot code review. The system is repository-scoped, citation-verified, opt-in, and accompanied by reported improvements in evaluation and A/B test metrics.