Performing manual Angular Ivy migrations

In this section, we will walk through optional migrations that put our application on track for future Angular versions. We will discuss fine-tuning initial navigation, optimizing change detection with NgZone, and improving the type safety of our unit tests.

Managing initial navigation

The following legacy values for the initialNavigation option for RouterModule.forRoot are removed by Angular Ivy version 11:

• true
• false
• 'legacy_enabled'
• 'legacy_disabled'

Angular Ivy version 11 also deprecates the 'enabled' value but introduces the following new values:

• 'enabledBlocking'
• 'enabledNonBlocking' (default)

'enabledBlocking' is equivalent to 'enabled' and is recommended for server-side rendering using Angular Universal. This value starts the initial navigation process before Angular creates an instance of the root component of our...