Hi, I noticed you are preparing for a new release soon, so I wanted to give you a heads up:
Version of the Desktop Entry Specification that the desktop entry conforms with. Entries that confirm with this version of the specification should use 1.5. Note that the version field is not required to be present.
So the "Version" key doesn't have to be bumped every time (because it's not meant to represent Wallpaper Downloader's version, but rather the version of the specification) and can be safely removed.