Digitally signing plugin for the Zoo

Is this feature still available ?
Our Rhino 6 plugin was using the zoo to generate licenses,
now upgrading I need to sign but it seems to not work anymore.
On the web site the link to digitally sign your plugin is broken

https://wiki.mcneel.com/developer/zoorhinoplugin

gd

Hi @gerryark,

Use this link instead.

– Dale