I got this list of upgradeable items.
How do I upgrade them?
Thanks.
apt list --upgradable
Listing... Done
bolt/focal-updates 0.9.1-2~ubuntu20.04.1 amd64 [upgradable from: 0.8-4ubuntu1]
libnss-systemd/focal-updates 245.4-4ubuntu3.18 amd64 [upgradable from: 245.4-4ubuntu3.17]
libpam-systemd/focal-updates 245.4-4ubuntu3.18 amd64 [upgradable from: 245.4-4ubuntu3.17]
libsystemd0/focal-updates 245.4-4ubuntu3.18 amd64 [upgradable from: 245.4-4ubuntu3.17]
libudev1/focal-updates 245.4-4ubuntu3.18 amd64 [upgradable from: 245.4-4ubuntu3.17]
systemd-sysv/focal-updates 245.4-4ubuntu3.18 amd64 [upgradable from: 245.4-4ubuntu3.17]
systemd-timesyncd/focal-updates 245.4-4ubuntu3.18 amd64 [upgradable from: 245.4-4ubuntu3.17]
systemd/focal-updates 245.4-4ubuntu3.18 amd64 [upgradable from: 245.4-4ubuntu3.17]
udev/focal-updates 245.4-4ubuntu3.18 amd64 [upgradable from: 245.4-4ubuntu3.17]