XAML components are not appearing in the intellisense in .cs file after XF 4.3 upgrade?

In the ContentPages created after upgrade to XF 4.x, the XAML components are not shown in the intellisence in the .cs file. The XAML headers are different in the old and new ones. Is that a reason?

The old header:

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:local="clr-namespace:ToDoPlus"
             x:Class="MyProject.MyPage">

The new header:

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:d="http://xamarin.com/schemas/2014/forms/design"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             mc:Ignorable="d"
             x:Class="MyProject.MyPage">