[Snyk] Security upgrade @angular/core from 18.2.13 to 19.2.19

[snyk-io]

Snyk has created this PR to fix 1 vulnerabilities in the npm dependencies of this project.

Snyk changed the following file(s):

• Angular/package.json
• Angular/package-lock.json

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Cross-site Scripting (XSS) SNYK-JS-ANGULARCORE-15353393	164

Breaking Change Risk

Notice: This assessment is enhanced by AI.

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[snyk-io]

The upgrade from Angular v18 to v19 is a major version update that stabilizes the new signal-based APIs and introduces several new features. This is a high-risk upgrade because it requires code modifications to adopt the now-stable signal APIs.

Key Breaking Changes & Migration Actions:

• Stable Signal-Based APIs: The new APIs for input, output, and queries are now stable. Migrating is recommended to align with modern Angular practices. The Angular team provides schematics to automate this process.

  • Action Required: Run ng generate @angular/core:signals to migrate your component inputs, outputs, and queries to the new signal-based APIs.
  • Note: Signal-based inputs are read-only. If your application was previously modifying @Input() properties directly, manual refactoring will be required after running the migration.

• effect() Function Behavior Change: The allowSignalWrites flag has been removed from the effect() function. Writing to a signal within an effect is now allowed by default, which simplifies the API but changes its behavior from the previous developer preview.

• Environment Updates: Angular 19 requires TypeScript version 5.6 or later. While the Node.js requirement (18.19.1+) is unchanged from Angular 18, the TypeScript version update is a required environment change.

Recommendation:
This upgrade requires running migration scripts and performing manual code verification. Developers should run the provided schematics to update to the new signal APIs and then thoroughly test the application, paying close attention to components where inputs might have been programmatically changed.

Source: Angular v19 Release Blog

Notice 🤖: This content was augmented using artificial intelligence. AI-generated content may contain errors and should be reviewed for accuracy before use.