Cloudflare has been committed to enhancing the speed and efficiency of its network since 2021, and the company has recently implemented a significant software upgrade that boosts performance by 25% and reduces response time by 10 milliseconds. This overhaul involved rebuilding their core system, known as FL, which had become cumbersome over 15 years of operation. FL2, the new system, is constructed using the Rust programming language and the Oxy framework, providing improved performance, security, and modularity. The transition to FL2 allows for more efficient handling of customer requests, enhanced security features, and smoother software upgrades without disrupting service. The move to FL2 has been gradual, starting in 2025, with Cloudflare now serving most customers through this new system while continuing to fine-tune and complete the migration, which is set to conclude in early 2026. The company anticipates further optimizations and expansions to support various traffic types, continuing its mission to deliver a faster and more reliable Internet experience.