GitHub rebuilds Git infrastructure to handle agent-scale write volume

GitHub reports that Git events on the platform rose from 218.2 billion to 473.3 billion per month between September 2025 and August 2026. It says agent workloads push write throughput and merge contention beyond what its current replica-based architecture handles well, so it is separating durable storage from compute while GitHub keeps running. The article states internal benchmarks reached up to 35 times higher write throughput.