Did you know? According to the latest statistics, the code changes for Bitcoin Core in 2025 amount to about 285,000 lines. Looking at the changes over the past 16 years, this level is higher than in the early stages and is close to the scale of routine maintenance in recent years. A significant portion of this comes from testing code, refactoring, benchmarking, comments, and documentation updates, rather than new functional logic. For Bitcoin, long-term maintenance itself is a workload.