When a new plugin is available, it is usually only the csi.js insert
file that needs to be modified. This insert checks the visitor's plugin
for version number, and if outdated they are redirected to download
the latest plugin.
The encrypted images never need updating.
Web page code will only need modification if there is a major change
like when we converted image display from Java applet to the current
day ActiveX for Windows.
When an upgrade is available our support team will send out notices
for the download links of the new insert and plugin installers.