Dependency Upgrade Manage dependency upgrades with supply chain security, compatibility analysis, staged rollout, and comprehensive testing across all major package managers. When to Use This Skill - Upgrading major framework or library versions - Configuring supply chain attack prevention (cooldown, script blocking, lockfile hardening) - Setting up secure package manager configuration - Resolving dependency conflicts or peer dependency issues - Planning incremental upgrade paths with testing - Automating dependency updates with Renovate, Dependabot, or Snyk - Auditing dependencies for vulner…