When making configuration changes, especially those involving version specifications or constraints, include explanatory comments with links to relevant issues, PRs, or documentation. This provides context for future maintainers and makes the reasoning behind configuration decisions transparent and traceable. For dependency versions, document why specific version constraints were chosen: ```yaml dependencies: - together>=1.1.0 # Use >= for compatibility, see issue #236 ``` For CI/CD matrices, explain version selection rationale: ```yaml strategy: matrix: python-version: ["3.11", "3.12"] # Dropped 3.10 support, see PR #123 ``` This practice helps team members understand the historical context of configuration decisions and prevents unnecessary changes or confusion during future updates.