So, if you find that your Ubuntu MATE 24.10 (Oracular Oriole) install is EOL (End Of Life), follow these steps to upgrade to Ubuntu MATE 25.04 (Plucky Puffin):
- Open a terminal and type in
sudo nano /etc/apt/sources.list
and change all ‘archive.ubuntu.com’ (Or a mirror that you’re using) entries to old-releases.ubuntu.com - Press CTRL+X to save your changes and confirm by pressing yes.
- Press enter to exit and type in:
sudo apt update && sudo apt upgrade
then reboot. - After rebooting, open a terminal and type in
sudo do-release-upgrade
. Follow the prompts and reboot.
And, congratulations! You have successfully upgraded to Ubuntu MATE 25.04 !