Changes in any existing CDT should also be reflected in all the active instances.https://community.appian.com/discussions/f/general/12103/changes-in-any-existing-cdt-should-also-be-reflected-in-all-the-active-instancesHi All, There is a CDT that is being used in production and also have several active instances. Now I have to make a change in the CDT and my requirement is that those changes should also be reflected in all the active instances as well as in productionen-USTelligent Community 12RE: Changes in any existing CDT should also be reflected in all the active instances.https://community.appian.com/thread/53620?ContentTypeID=1Fri, 23 Mar 2018 13:57:31 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:3107a0f6-b9e3-46cd-8915-7f1807f70c21Jayapriya MuthuHi, Here is the related post for your reference<br /> <br /> <a href="https://community.appian.com/discussions/f/general/11681/does-anyone-know-how-to-upgrade-the-cdt-definition-in-inflight-instances/51462#51462">community.appian.com/.../51462</a><div style="clear:both;"></div>