XanMod ships simultaneous 7.3.4 and 6.18.63 kernel builds
For the folks who treat their desktop kernel like a tuning mod, the wait was only about a week.
XanMod rolled two point releases on Tuesday, November 10, 2026. The MAIN branch now sits at 7.3.4-xanmod1, on Linux 7.3.4. The LTS branch is 6.18.63-xanmod1, riding Linux 6.18.63. Both track upstream stable releases that Greg Kroah-Hartman dropped that very morning. Both also carried his mandatory "all users must upgrade" advisory, and that phrase is never decoration. It means real security and bug fixes, not just release-churn.
What this kernel actually does
XanMod isn't a fork of Linux. It isn't an operating system either. The Brazilian developer Alexandre Frade takes the near-vanilla mainline source, layers on a patchset of scheduling, memory, I/O, and networking tweaks, and recompiles with aggressive x86_64 flags. Frade has run the project since 2015, though his Linux habit dates to 2004. The result is GPLv2-licensed and freely rebuildable.
XanMod describes itself as "a general-purpose Linux kernel distribution with custom settings and new features, built to provide a stable, smooth and solid system experience." Practically, it's a punchier, more compiler-obsessed cousin of Liquorix.
That's meaningful for a project that runs on donations. Frade sets an annual goal of about $1,200 to cover test hardware, web hosting, and "a coffee."
The stable batches XanMod rode on were unusually fat this time. Linux 7.3.4 packed more than 1,250 patches. Linux 6.18.63 brought more than 860. For a point release, those are staggering numbers. The security side is the real draw.
The 7.3.4 build adds a mitigation for the TSA (Thread Structure Attribute) bug on AMD's fifth-generation Zen architecture. It enforces append-only and immutable attributes on backing inodes and hardens an AppArmor bounds check. Both builds throw in a grab bag of NULL-pointer and refcount fixes across networking, filesystems, and the kernel's own memory paths.
Then comes the tuning you actually feel. XanMod builds with LLVM software pipelining, polyhedral optimization via Polly, and a set of Graysky CPU flags. The project says this compiler work nets roughly a 2 percent benchmark gain without bloating the kernel image. Networking gets Google's BBRv3 congestion control, Cloudflare's TCP collapse handling, and a Netfilter FLOWOFFLOAD target. Enthusiasts get the Steam Deck sensor driver, PCIe ACS Override for GPU passthrough, and Canonical's Android Binder driver for Waydroid.
Choosing a build, installing, and the fine print
XanMod splits its releases into tiers so you can match your hardware and your tolerance for risk.
The EDGE branch tracks mainline fastest. It's ideal for enthusiasts and dangerous on a production box. The MAIN branch (linux-xanmod-x64v3) is the sweet spot for most people. LTS tracks the 6.18 line, which carries support through at least December 2028. RT is PREEMPT_RT for real-time workloads.
The branches aren't the only fork in the road. There are four x86-64 psABI levels keyed to CPU age. Legacy targets circa-2003 hardware like AMD K8. v2 covers 2009 onward. v3 is for 2015 machines and newer. There's also an AVX-512 v4 option, which the project openly admits delivers no documented kernel benefit. If your CPU is a guessing game, there's a checker script at dl.xanmod.org/check_x86-64_psabi.sh.
The official apt repo covers a broad range of 64-bit Debian and Ubuntu codenames, and the install is three steps.
wget -qO - https://dl.xanmod.org/archive.key | sudo gpg --dearmor -vo /etc/apt/keyrings/xanmod-archive-keyring.gpg echo "deb [signed-by=/etc/apt/keyrings/xanmod-archive-keyring.gpg] http://deb.xanmod.org $(lsb_release -sc) main" | sudo tee /etc/apt/sources.list.d/xanmod-release.list sudo apt update && sudo apt install linux-xanmod-x64v3
Keep in mind the caveat the project flags itself. DKMS modules such as NVIDIA, OpenZFS, VirtualBox, and VMware Workstation may lag behind the newest kernel. Test before you reboot if you run any of them. XanMod also maintains a companion NVIDIA driver repo on OpenSUSE, with the production branch at 595.112.07 and a new-feature branch at 615.78.08.
Is it worth the bother?
For a desktop under heavy load, XanMod is arguably one of the best-tuned kernels available. The compiler work is real, and the patchset is broad, and the recent point releases show a project tracking mainline fast. It sits on Linux 7.3, with nearly 19,000 commits.
It's more demanding than your distro's stock kernel for what it gives, though. You're rebuilding kernel modules by hand and gambling on driver compatibility. No hand-holding installer, a predictable DKMS lag, and a branch (EDGE) that will bite you if you install it blindly. For tinkerers, gamers, and anyone comfortable in a terminal, it's worth the effort. For everyone else, the stock kernel is fine.
Head here to the XanMod website for more information.
