GitHub Availability Report: May 2026

GitHub’s May 2026 availability report summarizes nine incidents that caused degraded performance across GitHub services, while also giving a broader update on the company’s reliability work. GitHub says traffic is growing rapidly, driven in large part by AI-assisted and agentic development workflows, and that it is reshaping infrastructure to handle that growth. The company reports that 40% of monolith traffic is now served from Azure, up from 8% in February, with Git traffic at 30% and repository replication at 99%. It says effective capacity has more than doubled in four months. GitHub is also isolating the primary database cluster into independent domains for users, authentication, and authorization, with a new users service fully cut over and stateless authentication tokens rolling out to reduce per-request database lookups.