/var/log/dpkg.log

cat /var/log/dpkg.log
zcat -f /var/log/dpkg.log*

2021-04-06 12:42:10 install zabbix-get:amd64 <none> 1:5.2.6-1+ubuntu20.04
2021-04-06 12:42:10 status half-installed zabbix-get:amd64 1:5.2.6-1+ubuntu20.04
2021-04-06 12:42:10 status triggers-pending man-db:amd64 2.9.1-1
2021-04-06 12:42:10 status unpacked zabbix-get:amd64 1:5.2.6-1+ubuntu20.04
2021-04-06 12:42:10 startup packages configure
2021-04-06 12:42:10 configure zabbix-get:amd64 1:5.2.6-1+ubuntu20.04 <none>
2021-04-06 12:42:10 status unpacked zabbix-get:amd64 1:5.2.6-1+ubuntu20.04
2021-04-06 12:42:10 status half-configured zabbix-get:amd64 1:5.2.6-1+ubuntu20.04
2021-04-06 12:42:10 status installed zabbix-get:amd64 1:5.2.6-1+ubuntu20.04
2021-04-06 12:42:10 trigproc man-db:amd64 2.9.1-1 <none>
2021-04-06 12:42:10 status half-configured man-db:amd64 2.9.1-1
2021-04-06 12:42:11 status installed man-db:amd64 2.9.1-1

See also

• dpkg, dpkg-query, update-alternatives, ar, debsums, dpkg -V, dpkg -S, dpkg -L, dpkg --configure -a, wajig, dpkg -i -E , dpkg --help, dpkg-source-gitarchive

https://linux.die.net/man/8/update-alternatives