Year-End Development Practices That Pay Off

As 2025 winds down, taking a few hours to tighten your development workflow can set you up for a stronger 2026. Here are practices that consistently pay off for teams building mobile and AI-powered products.

Audit Dependencies and Security

Before the new year, run a full dependency audit. Outdated packages are a leading source of vulnerabilities and breaking changes.

npm audit
npx expo doctor

Update critical security patches first, then schedule minor and major upgrades for early 2026. Document any breaking changes so the team can plan migrations.

Document Runbooks and On-Call Notes

If something broke in 2025, make sure the fix is written down. Add runbooks for common production issues: auth failures, API rate limits, build failures. A short markdown file per incident type saves hours when it happens again.

Clean Up Feature Flags and Dead Code

Review feature flags and remove ones that have been fully rolled out. Delete or archive dead branches and unused modules. A leaner codebase is easier to reason about and deploy.

Closing the year with a lighter, more secure codebase and clearer docs makes the first quarter of 2026 much smoother.