Hi all, we just got the latest build of 3CX on our server, through apt upgrade, and it went from this : 3cxpbx/stable 15.5.8801.3 amd64 [upgradable from: 15.5.6354.2] Since version 15.5.8801.3 (alias SP3 if we got it properly reading in forum here), everything works except that remote app on smartphone is just timing out. Also, the windows application 3cx phone when starting, pop up a message stating that server version is different than client, and it can't work properly. It seems that smartphone apps and windows apps require update to be compliant with 15.5.8801.3, but none of these app have update available. Anyone else faced this issue ? Thank you in advance. Alexandre on behalf of IT group here.