I am currently using arcgis portal 10.3 and would like to upgrade to the latest version 10.7. My question is - once the portal is upgraded, will it affect the existing webmaps and hosted applications that uses 10.3 version?. Just to be in safe side I don't want to break/loose any hosted connection with these services. Also some applications and resources are consumed in in survey 123 and arcgis collector apps, I was wondering if these Apps/products also need to be upgraded. Would appreciate for any suggestions in this regard.