When you upload a pre-release version of a package, the "last updated" date of the last non pre-release package is updated to the same date as the new pre-release version. This can cause confusion as it looks like a new version of the stable package has been released. It would be better to show the date the nupkg was uploaded to the nuget gallery.
Minor bug fixes:
* Work Item #447: Use Published Date instead of last updated date in the
* Store null values in the Download stats pag*
* Work Item #465: Allow at most 5 tags per package