As most of you probably already know, Collaborate 4.1 has been made available for general release. Collaborate 4.1 does not have any API changes so any existing integrations should continue to work with Collaborate 4.1. We plan to upgrade http://integrationv4.highq.com to Collaborate 4.1 on Saturday the 24th of June 2017. Please note from Saturday the 24th, http://integrationv4.highq.com will be renamed to http://integrationlive.highq.com and a redirect will be put in place to redirect any requests to integationv4.highq.com.
Please note that we are also setting up a new instance called http://integrationbeta.highq.com for beta testing our future Collaborate releases so that you are aware of any API changes or improvements in the next release before it is released.