Synology DSM upgrade - will Serviio function after ?

Synology 212+ NAS , still running DSM 4.1

Intend to upgrade DSM to 4.2

Will that give problems with serviio or its library? ( am running latest serviio on the nas and works a-ok )
Use NAS a lot for the kids and library etc rebuild in past took tons of time...
So will the upgrade most likely be hassle free in relation to serviio ?

[patters]

You will need to stop Serviio, and re-install the Java package after the upgrade. DSM upgrades wipe out the UTF-8 support. Should be fine other than that.