MVC / Razor Pages UI 3.3 to 4.0 Migration Guide

Use IBrandingProvider in the Volo.Abp.UI Package

This will be a breaking change for MVC UI, but very easy to fix. IBrandingProvider is being moved from Volo.Abp.AspNetCore.Mvc.UI.Theme.Shared.Components to Volo.Abp.Ui.Branding namespace. So, just update the namespace imports.