Info about new Subscriber Registration Checker

docs/building-extensions/plugins/advanced-plugin-features.md

@@ -0,0 +1,33 @@
+Advanced Plugin features
+========================
+
+## Subscriber Registration Checker
+
+Subscriber Registration Checker `Joomla\CMS\Event\SubscriberRegistrationCheckerInterface` interface allows the Plugin to be checked before listener registration.
+This allows the plugin to be registered only when special conditions are met, e.g., only for specific applications.
+
+### Example:
+
+Creating the plugin that will be run only for Administrator or Api application:
+
+```php
+use Joomla\CMS\Event\SubscriberRegistrationCheckerInterface;
+use Joomla\CMS\Plugin\CMSPlugin;
+
+class MyExamplePlugin extends CMSPlugin implements SubscriberRegistrationCheckerInterface
+{
+    //... rest of the plugin code
+
+    /**
+     * Check whether the Subscriber (or event listener) should be registered.
+     *
+     * @return bool
+     */
+    public function shouldRegisterListeners(): bool
+    {
+        $app = $this->getApplication();
+
+        return $app->isClient('administrator') || $app->isClient('api');
+    }
+}
+```

migrations/51-52/new-features.md

@@ -16,3 +16,11 @@ This new feature adds a "total" counter at the bottom near the pagination in Joo
 displaying the number of items available after applying filters for easier item management.
 
 PR: [43575](https://github.com/joomla/joomla-cms/pull/43575)
+
+
+#### New interface for Plugins `SubscriberRegistrationCheckerInterface`
+
+Adding interface that allows the Plugin to be checked before listener registration.
+PR: https://github.com/joomla/joomla-cms/pull/43657
+
+More details here [Subscriber Registration Checker](https://manual.joomla.org/docs/building-extensions/plugins/advanced-plugin-features#subscriber-registration-checker).