No specific info about version 3.5. Please visit the main page of pap.er on Mac Informer.
Wallpaper Clocks allows you to set wallpapers that include the date and time.
Sets famous works of art as wallpapers for your desktop.
Unsplash Wallpaper is a pack with wallpapers for Mac.
Improve your desktop view by automatically changing the wallpapers.
PaperScreen is a background image changer application.