Canonical’s Questing Quokka waddles in at 5.7 GB with AppArmor woes
The latest interim release of Ubuntu is here, showcasing some significant changes. This isn’t a long-term release, yet many of its differences will be in 26.04 next year.
At the end of last week, Canonical released Ubuntu 25.10 «Questing Quokka», along with nine of the ten official flavors. The release notes cover what’s new.
A fairly significant bug was discovered after the Quokka was released: Flatpak is broken due to a bug in how Ubuntu’s AppArmor security module handles the fusermount3 command. There is a workaround and a fix is in progress. The Ubuntu desktop doesn’t include Flatpak as standard and neither do any of the flavors, but many users do prefer Flatpak to Canonical’s own Snap format. So much so that Flatpak is the default in multiple downstream Ubuntu-based distros, notably Linux Mint but also including Elementary OS, Zorin OS, and Anduin OS.
Ubuntu and its upstream Debian both use AppArmor, while most distros from the Red Hat family use SELinux instead. Notably, the recently released openSUSE Leap 16 switched from AppArmor to SELinux, as we reported when we looked at the release candidate in August.
The missing flavor is Ubuntu Unity, of which there won’t be a Questing version. On the remix’s Telegram channel, admin Maik Adamietz said:
The Register has already covered much of what’s new in version 25.
