Ok, I have noticed that updating does the following:
- reinstalls squeezelite and shairport-sync
- resets asound.conf to default state.
Therefore asound.conf needs to be edited by those who don't use the default sound card.
Now I only have to understand why shairport stutters. I suspect it's due to the very high cpu usage during the directory rescans of syncthing.
Thanks for the useful update Fourdee!
Having issues with your DietPi installation or found a bug? Post it here.