The new Form, FormField auto-validation API

Summary

Context

Description of change

Migration guide

Timeline

References

Summary

The previous auto validation API for the Form and
FormField widgets didn’t control when auto validation
should occur. So the auto validation for these widgets
always happened on first build when the widget was first
visible to the user, and you weren’t able to control
when the auto validation should happen.

Context

Due to the original API not allowing developers to change
the auto validation behavior for validating only when
the user interacts with the form field, we added new API
that allows developers to configure how they want 
auto validation to behave for the Form and FormField
widgets.

Description of change

The following changes were made:

The autovalidate parameter is deprecated.