What is the Drift Score and how is it calculated?

Answer

The Drift Score is a metric from 0–100 that represents how far behind your codebase is relative to current stable ecosystem baselines. Higher scores mean healthier upgrade posture. It's calculated from four weighted components: Runtime (Node.js/.NET version lag), Frameworks (major version distance for React, Next.js, etc.), Dependencies (age distribution across all deps), and EOL Risk (proximity to end-of-life dates).