Shortly after the release of Ubuntu 25.04, Canonical activated updates from 24.10 and he deactivated them againThe reason was a bug that primarily affected the upgrade from Kubuntu 24.10: unmet dependencies and an incomplete migration to PyQt6 could result in unusable desktops due to inaccessibility. As a preventative measure, updates have been discontinued for all official versions until further notice.
And that notice has already arrived, although it has not been reported. When Canonical turn on updates A new version appears in Software Update, provided all previous updates have already been applied. The process is simple: accept the pop-up window that appears and follow the wizard's instructions.
It is now possible to upload to Ubuntu 25.04
As simple as the process may be, it's still a major update with many new packages, including all the underlying packages for the operating system. For this reason, It is recommended to make a backup of all files, important documents and data before starting the process. Nothing should happen, but the fact that updates had to be stopped a month ago shows that there's always the possibility that something won't go as expected.
Ubuntu 25.04 arrived on April 17th with Linux 6.14 and updated base packages across all official flavors. The desktops used by Plucky Puffin are GNOME 48, Plasma 6.3, Xfce 4.10, MATE 1.26.1, and Budgie 10.9.2, among others. It's worth noting that some options, such as Lubuntu, have kept many, if not all, of the desktop components because they focused on stability and preparing for the future.
The nearest future is already October 2025, when Questing Quokka will arrive with many of the new features we'll see in the next LTS, which will arrive next April.