The NuGet Gallery is in the process of changing how we store and show package versions on the site to show only a normalized version to users.
The Client tools currently show only the de-normalized version of the package. While this will match the version number uploaded by the original package author, this will be different from the experience shown to users of the Gallery, and could sow confusion.
We ought to minimize that to the greatest extent possible.
For more information about the normalized version number change, view the pull request at