No specific info about version 2.1. Please visit the main page of Wallpaper Engine：壁纸引擎 on Software Informer.
Create an animated wallpaper using your own images.
Add interactivity to your desktop with Wallpaper Master cycler & manager.
An application that helps you change the wallpaper on your desktop.
Any Wallpapaer is a powerful desktop wallpaper manager and cycler.
It is an application that enables you to change the wallpaper on your desktop.
Auto Wallpaper lets you change the wallpaper it automatically.