Announcement: Xwayland 26.1.0 rc1

Date: Wednesday, August 19, 2026, 13:37:02 UTC
Author: Olivier Fourdan (ofourdan at redhat.com)

[!IMPORTANT] As per the established development timeline, I am pleased to announce the release of Xwayland 26.0.99.901. This version serves as the initial release candidate for the upcoming standalone version $\text{Xwayland } 26.1.0$ (commonly referred to as Xwayland 26.1.0 rc1).

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🚀 Key Enhancements & Changes

Since the release of Xwayland 24.1, several significant modifications have been implemented. The following table summarizes the most notable updates:

Release Workflow

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🛠 Testing & Bug Reporting

Community feedback is essential for a stable release. Please participate in the testing phase:

• Install Xwayland 26.1.0 rc1.
• Verify clipboard bridging with the -clipboard flag.
• Test multi-seat configurations via Xi2.
• Report any regressions or bugs.

Issue Tracker: https://gitlab.freedesktop.org/xorg/xserver/-/issues

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📜 Comprehensive Change Logs

The following logs detail all modifications since the inception of the xwayland-24.1 branch (spanning over two years). Note: Some entries pertain to general Xserver components rather than Xwayland specifically.

Contributions by Aki Sakurai

• xquartz: Resolved compilation issues.
• xquartz: Fixed the inverted Y tilt for tablet pens on macOS.

Contributions by Alan Coopersmith

🖥️ Core & OS Integration

• xf86_OSlib.h: Removed unnecessary Solaris keyboard headers.
• solaris: Migrated APM interfaces to official SRN interfaces.
• os: Implementation of getaddrinfo() and inet_ntop() for IPv4/IPv6 handling.
• os: Transitioned to EVP APIs when utilizing OpenSSL 3.
• os: Removed BUGADDRESS definition.
• xfree86: Fixed 64-bit Solaris/SPARC build issues.

⚙️ Build System (Meson & CI)

• CI: Updated xcb utility libraries to versions with valid submodule URLs.
• CI: Switched libdecor source from gnome.org to fd.o.
• CI: Bumped libdecor from 0.1.0 $\rightarrow$ 0.1.1.
• CI: Upgraded meson from 0.56.2 to 1.0.0 (bullseye-backports).
• CI: Updated XTS to a commit removing the -fcommon workaround.
• CI: Enabled xf86bigfont in specific build configurations.
• meson: Added xproto header version requirements to xorg-server.pc.
• meson: Ensured xselinux is not built if xace is disabled.
• meson.build: Included Xephyr in the DDX build output.
• compiler.h: Eliminated Sun compiler platform define translations to gcc.
• meson: Fixed AF_INET6 checks for stricter compilers.

🛠️ DIX (Device Independent X)

• dix: Added calloc() failure checks in Xi event conversion.
• dix: Fully initialized local_closure in PolyText.
• dix: Fixed SetFontPath to avoid setting errorValue on success.
• dix: Resolved implicit fallthrough warnings in enterleave.c.
• dix: Fixed a null pointer dereference in CreateScratchGC.
• dix: Prevented memory leaks in InitPredictableAccelerationScheme upon failure.
• dix: Added a check to prevent memcpy if malloc fails in dixChangeWindowProperty.
• dix: Optimized ProcListProperties to skip work when numProps == 0.
• dix: Switched to unsigned integers for bit shifting in HashResourceID.
• dix: Added NULL check for GetMaster in GetPairedDevice.
• dix: Fixed implicit fallthrough in FindBestPixel.
• dix: Implemented __builtin_popcountl to replace Ones().
• dix: Corrected button offsets for DeviceButtonStateNotify events.
• dix: Capped checks at MAX_VALUATORS for Xi events.

⌨️ Input & Keyboard (Xi, xkb)

• Xi: Prevented NULL pointer dereference when GetXTestDevice fails.
• xkb: Fixed XkbAllocNames to set num_rg to 0 on allocation failure.
• xkb: Replaced sprintf with snprintf in xkbtext.c.
• xkb: Introduced tbGetBufferString helper.

📺 Display & Rendering (Modesetting, Render, Panoramix)

• render: Fixed NULL pointer dereference in PictureFindVisual.
• modesetting: Fixed memory leak in ms_present_check_unflip().
• modesetting: Fixed typo in XF86ModuleVersionInfo.
• modesetting: Fixed builds when pciaccess or udev_kms are disabled.
• modesetting: Fixed symbol tests when glx is disabled.
• panoramix: Fixed null dereferences in PanoramiXMaybeAddDepth() and PanoramiXConsolidate().
• mi: Adopted a common bit counting function implementation.
• render: Removed unnecessary header guard macros in miindex.c.

📄 Documentation & Man Pages

• Xserver.man: Removed X FireWall Proxy (xfwp) details.
• Xserver.man: Updated default font path to allow line breaks.
• Xserver.man: Added Xwayland(1) to server-specific pages.
• Xserver.man: Corrected authorization protocol listings.
• man pages: General cleanup of trailing whitespace and .PP macros.
• XWin.man: Fixed font change escape typos.
• man pages: Removed .BI macro usage for single arguments.
• Xephyr.man: Switched Unicode dashes to ASCII hyphens (\-).

📦 Miscellaneous

• xfree86: Fixed memory leaks on realloc failure.
• xfree86: Updated modeline2c.awk to ensure trailing newlines.
• pkgconfig: Added URL to files.
• dix-config.h: Added HAVE_SOCKLEN_T and HAVE_STRUCT_SOCKADDR_STORAGE for xtrans 1.6.
• test: Removed stray semi-colons and extra returns.
• Xace: Provided hook function definitions for when xace is disabled.
• xwayland: Fixed builds with xace disabled.
• xf86bigfont: Fixed -Wimplicit-function-declaration and -Werror=unused-variable errors.
• test: Added unit tests for x_sha1_* functions in os/xsha1.c.

/* Example of the logic used for the new clipboard bridge */
if (xwayland_rootful_enabled && clipboard_bridge_active) {
    bridge_selection(WAYLAND_SELECTION, X11_SELECTION);
}