- First task of v2 done

src/Ui.php

@@ -8,6 +8,9 @@ class Ui {
 
     public function registerFormExtension(Compiler $compiler) : self
     {
+        # BW compatibility with v1.x syntax
+        $compiler->registerExtension(new Form\Ui());
+
         $compiler->registerExtension(new Form\UiForm());
         $compiler->registerExtension(new Form\UiInput());
         $compiler->registerExtension(new Form\UiCheckbox());