Angular Version Migration Guide from 17.0.x to 17.3.11 (LTS) - dialloi659/angular GitHub Wiki

Angular Version Migration Guide from 17.0.x to 17.3.11 (LTS)

This guide outlines the migration process for an Angular project from version 17.0.x to version 17.3.11 (LTS). It also clarifies why migrating this way is chosen over using the Angular migration tool (ng update). This approach is selected because ng update primarily facilitates migrations between major versions. It's worth noting that Angular version 18 has been released and is actively developed, but version 17 is the Long Term Support (LTS) release.

Why Migrate this Way?

  1. Limited Support with ng update: The ng update tool is primarily designed for migrating between major versions of Angular. Given that Angular 17.x is a Long Term Support (LTS) release, it may not be directly supported by ng update for incremental updates. Hence, manual migration steps are necessary for minor version upgrades within the same major version.

  2. Significant Feature Updates: Angular 17.0.x to 17.3.11 spans several minor releases, each potentially introducing significant new features, enhancements, and bug fixes. These updates, including the stabilization of features previously in preview, provide important improvements and optimizations to your Angular application.

  3. Context of LTS: As Angular 17.x is the LTS release, migrating to the latest version within this series ensures ongoing support and maintenance for an extended period, guaranteeing stability and security updates for your application.

Migration Steps

Follow these steps to migrate your Angular project from version 17.0.x to 17.3.11:

  1. Find Specific Package Versions on npm: Before starting the update, identify the specific versions of packages to be installed. Use the website to search for available versions.

    For example, to find the version of @angular/core, search on npm: @angular/core and check the version history.

  2. Update Angular CLI and Angular Core: Update Angular CLI and Angular Core to the specific versions 17.3.x.

    npm install @angular/[email protected] @angular/[email protected]
  3. Update Other Angular Packages: Update other Angular packages to ensure compatibility with the new Angular version.

    npm install @angular/[email protected] @angular/[email protected] @angular/[email protected] @angular/[email protected] @angular/[email protected] @angular/[email protected] @angular/[email protected] @angular/[email protected]
  4. Update Development Packages: Update development packages such as @angular-devkit/build-angular to ensure compatibility with the new version.

    npm install @angular-devkit/[email protected]
  5. Clean npm Cache: Clean the npm cache to avoid version conflicts and ensure a clean installation.

    npm cache clean --force
  6. Reinstall Dependencies: Reinstall all dependencies to ensure all versions are correct and compatible.

    npm install
  7. Test the Application: After updating and reinstalling dependencies, launch the application to ensure everything works correctly.

    ng serve

Additional Resources

You can find more information about the added features and enhancements in the Angular 17.x series by visiting the Angular Blog. This resource provides detailed insights into the changes introduced in each minor release, including new features, improvements, and bug fixes.

Updated package.json Example

Ensure the package.json file reflects the updated versions:

  "dependencies": {
    "@angular/animations": "^17.3.11",
    "@angular/common": "^17.3.11",
    "@angular/compiler": "^17.3.11",
    "@angular/core": "^17.3.11",
    "@angular/forms": "^17.3.11",
    "@angular/platform-browser": "^17.3.11",
    "@angular/platform-browser-dynamic": "^17.3.11",
    "@angular/router": "^17.3.11",
  "devDependencies": {
    "@angular-devkit/build-angular": "^17.3.8",
    "@angular/cli": "^17.3.8",
    "@angular/compiler-cli": "^17.3.11",
    "typescript": "~4.9.5",

By following these steps, you should be able to successfully update your Angular project from version 17.0.x to version 17.3.11 without issues. Thorough testing of the application after each update is essential to identify and resolve any potential issues. To find specific package versions, refer to the package pages on npm and review the available version history.