Running legacy Angular versions (like v12 or v14) increases vulnerability risks and blocks access to speed features like signals. If you need support with updating, search for a senior Angular developer for startups who has experience executing major versions step-by-step.
Prerequisites to a Safe Upgrade
Before running update commands, ensure you have robust unit test coverage. Upgrades can introduce regressions, especially in third-party library dependencies. Always update Node.js to the recommended version supporting your target Angular version first.
CLI Upgrades
Never jump multiple major versions at once. Use the official upgrade tool at update.angular.io and run version updates sequentially:
ng update @angular/core@15 @angular/cli@15
Verify compile flags and resolve deprecation warnings at each major step before moving to the next version.
