This document is for the ABP MVC / Razor Pages UI. See also the main migration guide.
Removed the Gulp dependency from the MVC / Razor Pages UI projects in favor of abp install-libs command (see) of the ABP CLI. You should run this command whenever you change/upgrade your client-side package dependencies via package.json.
Switched from SweetAlert to SweetAlert2. Run the abp install-libs command (in the root directory of the web project) after upgrading your solution. See #9607.