Ubuntu 22.04 LTS Jammy jellyfish it will be released on April 21, 2022. However, Ubuntu 20.04 and Ubuntu 21.10 users can upgrade to the latest version which as of yesterday is in beta form as of now.
Below we will see step by step how you can do it upgrade of an Ubuntu system to version 22.04 Jammy Jellyfish, which when officially released will be the last long term support release.
First you should make sure your current Ubuntu system is up to date. Run them below commands:
sudo apt Update && sudo apt upgrade -y
sudo apt dist-upgrade -y
Next, you need to remove all the packages that are no longer used by your system:
sudo apt autoremove -y
A reboot would help
sudo reboot
Then you need to use the update-manager-core package to upgrade your system.
Run the following command:
sudo update-manager -d
It will open the update manager, but with the -d option. For those who do not know, the -d option tells the system to look for dev versions.
if she management updates doesn't open, check if update-manager-core is installed. By default, it should be there. If not, run the command:
sudo apt install update-manager-core
That's it. Follow the instructions on your screen until the process is complete. At the end you will be asked to restart your system.
