io_uring support is disabled, with Debian/buster kernel does not support io_uring and regarding Raspbian/Buster, liburing is not available in the main repo.
These packages are built against the current libmpdclient 2.16-1 from official Debian repository.
You can add
deb.kaliko.me to your source list to follow future builds.
Debian buster backports (amd64 only):
# /etc/apt/sources.list.d/deb.kaliko.me.list # Buster BACKPORTS deb [signed-by=/usr/share/keyrings/deb.kaliko.me.gpg] https://deb.kaliko.me/debian-backports/ buster-backports main
Raspberry Pi OS backports (armhf):
# /etc/apt/sources.list.d/deb.kaliko.me.list # Raspberry Pi OS BACKPORTS deb [signed-by=/usr/share/keyrings/deb.kaliko.me.gpg] https://deb.kaliko.me/raspbian-backports/ buster-backports main
Add the signing key:
wget -O /usr/share/keyrings/deb.kaliko.me.gpg https://kaliko.me/kaliko.gpg