Maybe, this library has been replaced by the jQuery feature for asynchroneous communication?
Is there anyone using this library with GateIn 3.3?
Thanks for your reply
Indeed, the doc of GateIn 3.3.0 is not updated.
The library has been removed as it has no usage in GateIn code base. The lib was used by some eXo projects and was a part of GateIn 's JS code. Now, we let those eXo projects maintains Topic.js