DOC Add UrlField

en/04_Changelogs/5.2.0.md

@@ -14,6 +14,7 @@ title: 5.2.0 (unreleased)
   - [Create random passwords for new users](#create-random-passwords-for-new-users)
   - [Buttons to select all files and deselect all files](#bulk-action-buttons)
   - [New searchable dropdown fields](#searchable-dropdown-field)
+  - [New `UrlField`](#urlfield)
   - [Create file variants with different extensions](#file-variants)
   - [More nuanced permissions for `/dev/*` routes](#dev-route-permissions)
   - [Generic typehints](#generics)
@@ -182,6 +183,10 @@ Both of these fields include a `setIsLazyLoaded()` method which will load a limi
 
 Note that these are both powered by react components, and are only intended to be used within the CMS. If you want to use them on the front-end of your project you will need to provide your own templates and JavaScript implementation for them.
 
+### New `UrlField` {#urlfield}
+
+A new [`UrlField`](api:SilverStripe\Forms\UrlField) has been added which is a subclass of [`TextField`](api:SilverStripe\Forms\TextField) with some additional validation rules. It will validate that the value entered is a valid absolute URL with a protocol and a host.
+
 #### Auto scaffolding of `has_one` relations
 
 A `SearchableDropdownField` will now be used when automatically scaffolding `has_one` relations on a form in the CMS. Previously a `DropdownField` was used, and when there were over 100 items a [`NumericField`](api:SilverStripe\Forms\NumericField) was used which was not user friendly.