Description of problem: Back in the days when the SPICE client has been opened using ActiveX or XPI plugins, the ActiveX one supported a parameter called "version" which was a way how to update the plugin to the newest version. Today, for the same thing we use the RemoteViewerSupportedVersions and RemoteViewerNewerVersionUrl from vdc_options. But, we still ship the SpiceVersion.txt and we still load it on frontend and are parsing the version out of it. It would be nice to get rid of it completely.
Unfortunately we don't have capacity to work on this.