You can switch to the latest version Angular 9.
ng update [package] [--[argument]=[value]]
Updates the current application to latest versions.
Run through without making any changes.
If false, will error out if installed packages are incompatible with the update.
Whether to update all packages in
Use the largest version, including beta and RCs.
Only perform a migration, does not update the installed version.
Version from which to migrate from. Only available with a single package being updated, and only on migration only.
Version up to which to apply migrations. Only available with a single package being updated, and only on migrations only. Requires from to be specified. Default to the installed version detected.
The NPM registry to use.