Hi there,
17.7.4 updates also unbound to new version 1.6.6. However, unbound is not restarted after the update so that still 1.6.5 is running - is this by intention?
Br br
Yes. Persistent services keep running on non-reboot updates. The reboot is recommended but not required. Manual service restart also works, but it's not as easy to follow the changes and what needs to be restarted.
Cheers,
Franco