sudo apt update
sudo apt upgrade
sudo apt dist-upgrade
sudo apt autoremove
This could fail. Read the message. It will tell to edit a "prompt". Edit from LTS
to normal
.
sudo vim /etc/update-manager/release-upgrades
sudo apt dist-upgrade
sudo apt autoremove
sudo do-release-upgrade
or enforce
sudo do-release-upgrade -d
apt search <package> -a | grep -i version
sudo apt install <package>=<version>