Xwayland 26.1.0 RC1 Removes EGLStream, Boosts NVIDIA Compatibility

Olivier Fourdan of Red Hat announced the release of Xwayland 26.1.0 rc1 on August 19, 2026. This update marks the first tagged feature release since Xwayland 24.1 in 2024, consolidating two years of development into a single update.

The release focuses on refining the performance and compatibility of legacy X11 clients operating within Wayland environments. A primary technical milestone in this version is the complete removal of EGLStream support, a change made possible because the NVIDIA Linux driver stack no longer requires the protocol. Additionally, rootful Xwayland now features a clipboard and primary selection bridge, which can be enabled via the '-clipboard' flag to allow copy-paste functionality between rootful Xwayland and the Wayland desktop.

Technical Enhancements

Beyond the driver cleanup, the update introduces several quality-of-life and structural improvements. Multi-seat compatibility has been enhanced by mirroring Wayland seats and devices into an XInput 2 hierarchy. The update also modifies RandR emulation, which now prefers native modes up to the physical resolution and accounts for rotation within emulated modes.

Further protocol support has been expanded to include the 'wl_fixes' protocol, specifically adding destroy_global and ack_global_remove. Xwayland also now supports the xdg-system-bell protocol, allowing the system bell to be rung through the compositor.

Why It Matters

As Linux distributions increasingly adopt Wayland as the default display protocol, Xwayland serves as the critical compatibility layer that prevents legacy X11 applications from becoming obsolete. The removal of EGLStream represents a significant cleanup of the NVIDIA driver stack's integration, reducing technical debt and streamlining the codebase.

Moreover, the improvements to rootful implementation and multi-seat support reduce the friction for users and administrators transitioning away from pure X11 servers. By enhancing how X11 apps are hosted and how they interact with the modern desktop, these changes ensure that professional and legacy software remains viable in a Wayland-centric ecosystem.

What's Next

As this is a release candidate (rc1), the community and developers will now monitor for regressions and stability issues before the final 26.1.0 stable release. Users and distribution maintainers will be watching to see how the removal of EGLStream affects older NVIDIA hardware and whether the new clipboard bridge resolves long-standing friction in rootful configurations.