Angular 8 is the latest version of Angular. Here, we are specifying how to upgrade your older version of Angular in the latest one. It doesn’t matter which Angular’s version you are using, you can easily update it to Angular 8 by using the following steps:
Step 1: First, check your current version of Angular CLI by using the following command.
ng -version 
You can see in the above output that we are using Angular 7. Now, we have to update it to Angular 8.
Step 2: Run the following command to uninstall your older version of Angular.
npm uninstall -g angular-cli // For Windows Open Powershell on Administrator Mode
sudo npm uninstall -g angular-cli // For Mac 
Step 3: Now you have to verify and clear the cache by using the following commands.
npm cache verify 
npm cache clean 
Step 4:Now, install the latest Angular CLI (Angular 8) by using the following command.
npm install -g @angular/cli@latest 
Step 5: Angular 8 CLI is now installed in your system. You can check it by using the following command.
ng --version 
Now, you can see that Angular 8 is installed in your system.
Note: After updating both global and local package, you should clear the cache to avoid errors.
Update Angular Packages
If you have already created your project in older Angular version then go inside that folder and use the following command to update that package.
ng update @angular/core
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