Today we've released UTM 9.510. The release will be rolled out in phases. In phase 1 you can download the update package from our FTP server, in phase 2 we will spread it via our Up2Date servers.
Update: We replaced the update from 9.509 to 9.510 on our FTP server to address two issues. We also uploaded the update for all who have installed the previous one.
After Update to 9.510-5 -> Error at Start of Mail-Manager (Invalid Request)