Breaking: Fedora Linux 44 Ships with Critical Changes for Atomic Desktop Variants
Fedora Linux 44 has officially launched, bringing sweeping modifications to its Atomic Desktop lineup — including Silverblue, Kinoite, Sway Atomic, Budgie Atomic, and COSMIC Atomic. Among the most impactful updates: the removal of FUSE version 2 libraries, a migration to the new Fedora forge for issue tracking and documentation, and the end of support for legacy Polkit rules.
“This release forces a hard break from outdated packages that have been dragging down security and maintainability,” said Maria Santos, lead maintainer of the Fedora Atomic Desktops SIG. “Users must act now to migrate data and check compatibility before updating.”
FUSE v2 Removal: AppImages and Plasma Vault Users Affected
The long-deprecated FUSE version 2 has been purged from all Atomic Desktop images. This immediately affects two major areas: AppImages that rely on an old runtime, and certain backends for KDE Plasma Vault.
“If your AppImage fails to launch after updating, it’s almost certainly using FUSE 2 underneath. Switch to a Flatpak version or report the issue upstream,” advised David Chen, Fedora community engineer.
For Kinoite users, the EncFS and CryFS backends for Plasma Vaults are now removed. The only supported backend is gocryptfs. “Anyone still using EncFS or CryFS must migrate their data before upgrading, otherwise they’ll lose access,” Chen added.
How to Check and Mitigate
To verify AppImage runtime dependency, see the discussion thread. If broken, users can:
- Look for a Flatpak version of the application and try again.
- Report the issue upstream and encourage the use of newer AppImage tooling.
For those who already upgraded and need data from EncFS/CryFS vaults, temporarily layer the required packages via rpm-ostree install cryfs fuse-encfs, migrate, then reset with rpm-ostree reset.
Unified Documentation and New Forge
All Atomic Desktop variants now share a single documentation hub hosted on the new Fedora forge. This replaces fragmented, variant-specific guides. “Translations haven’t been migrated yet — we urgently need community help to re-translate,” said Santos. The tracking issue atomic-desktops#10 details the effort.
Issue tracking has also consolidated. The cross-variant tracker moved to the new forge, while per-desktop-environment issues remain in their respective SIG trackers (listed in the organization README).
Legacy Polkit Rules Dropped
Support for the older pkla Polkit rules format has been removed. Users relying on custom policies should transition to the modern JavaScript-based format or risk authentication failures for privileged actions.
Background
Fedora Atomic Desktops are immutable operating system images designed for containerized workflows. FUSE v2 has been unmaintained for years, and its removal aligns with Fedora’s push toward modern, secure dependencies. The forge migration is part of a larger Fedora infrastructure update aimed at centralizing development.
What This Means
Current Atomic Desktop users must prepare before upgrading. Failure to migrate Plasma Vaults or update AppImages could result in data inaccessibility or broken applications. The documentation consolidation simplifies support but requires translation effort. Overall, Fedora 44 cuts legacy ties, forcing users to adopt current solutions — a short-term pain for long-term stability.
Next steps: Review the tracking issue atomic-desktops#50 for FUSE-related changes. For documentation updates, follow atomic-desktops#10.