Recently, I have updated my Synology NAS to DSM 7. I was positively surprised that most of the apps I use work without problems. The new Synology Photos app is not that nice compared to the old Photo Station 6 but anyway, it will improve, I hope.
There is a bigger update on the WebStation under DSM 7. Formerly, it was quite difficult to run a website (let’s say: a WordPress instance) under the main domain name of your installation (e.g. as fpposchmann.de). The standard installation would access a WordPress instance under fpposchmann.de/wordpress; quite ugly. The Apache aliases could not be configured in the WebStation. I found no way to change that by standard configuration means and ended up configuring my own apache.conf.