https://community.appian.com/discussions/f/administration/12541/upgrade-appian-from-7-2-to-18-1o update the Dear all, I would like to upgrade my original environment from 7.2 to 18.1. Having considered the complexity and availability of Appian packages necessary for the upgrade as mentioned in : https://community.appian.com/discussionsen-USTelligent Community 12https://community.appian.com/thread/55822?ContentTypeID=1Tue, 29 May 2018 05:19:55 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:0666befe-926d-4047-a83f-0f4e744647f8BenhailKindly Contact Appian Support for more help.<br /> <br /> As far as I understand, the Processes in 7.2 will be lost with upgrade to 18.1 and also the document attachments will also be lost.<br /> <br /> Lastly , You need to Publish the Data Store once again in 18.1 and you will be good to go.<br /> <br /> But my suggestion is contacting support for a better and smooth transition.<div style="clear:both;"></div>