How to Upgrade Angular 17 to 18 Version?

Hi, Dev

In this post, I will guide you through the process of upgrading Angular from version 17 to version 18 on Ubuntu.

While working on my Angular project, I realized I needed to upgrade from Angular 17 to Angular 18. A simple update command didn't work due to some configuration issues, prompting me to explore other upgrade methods.

There are two main approaches to upgrade from Angular 17 to 18. First, we'll try directly updating the Angular CLI version. If this approach fails, the alternative involves uninstalling and then reinstalling the Angular CLI. Here are the steps for both methods.

Following Way to Upgrade Angular 17 to 18 Version

Way 1: Update Angular CLI

Way 2: Update Angular CLI using reinstall

Let's see both ways:

Way 1: Update Angular CLI

You can directly upgrade your angular CLI version globally by using the update command of ng. so you can do it by bellow command.

ng update @angular/cli @angular/core

Now you can see ng version by following command:

ng version

Way 2: Update Angular CLI using reinstall

I will show you list of commands for update version angular 17 to angular 18 by using uninstall and upgrade angular version.

Uninstall Angular CLI:

npm uninstall -g @angular/cli

Clear Cache:

npm cache clean --force
  
npm cache verify

Install Angular CLI:

npm install -g @angular/cli

Now you have a new version of angular CLI. so you can check it by following the command:

ng version	

You will see a layout bellow:

I hope it can help you...