[action] [license-activation] Add a new action that is triggered after a license activation.

Author: fajardoleo

includes/class-freemius.php

@@ -14034,6 +14034,10 @@ private function activate_license(
                 $result['next_page'] = $next_page;
             }
 
+            if ( $result['success'] ) {
+                $this->do_action( 'after_license_activation' );
+            }
+
             return $result;
         }
 
@@ -21667,6 +21671,8 @@ protected function _activate_license( $background = false, $premium_license = nu
                 return;
             }
 
+            $this->do_action( 'after_license_activation' );
+
             $premium_license = new FS_Plugin_License( $license );
 
             // Updated site plan.

start.php

@@ -15,7 +15,7 @@
 	 *
 	 * @var string
 	 */
-	$this_sdk_version = '2.12.2.1';
+	$this_sdk_version = '2.12.2.2';
 
 	#region SDK Selection Logic --------------------------------------------------------------------
 
@@ -453,6 +453,7 @@ function_exists( 'wp_is_json_request' ) &&
 	 *
 	 *      fs_after_license_loaded_{plugin_slug}
 	 *      fs_after_license_change_{plugin_slug}
+	 *      fs_after_license_activation_{plugin_slug}
 	 *      fs_after_license_deactivation_{plugin_slug}
 	 *      fs_after_plans_sync_{plugin_slug}
 	 *