HighQ is planning to release Collaborate 4.2 in few weeks time. Our beta sandbox instance http://integrationbeta.highq.com has been upgraded to Collaborate 4.2 to allow integrators to test their integration with this new version. Please note that there are no new API changes in this version. We highly recommend testing your integration with each new release using this beta sandbox instance before your client upgrades to the new version. If you do not have access to this beta sandbox instance then please email support@highq.com to gain access to this instance.