MX Linux 25.3 "Infinity": Complete Guide, What's New and How to Install

MX Linux is a midweight desktop Linux distribution built on Debian Stable by the antiX and former MEPIS communities. The current release, MX Linux 25.3 "Infinity," shipped on September 20, 2026, as the third point release on top of Debian 13.7 "Trixie."

If you've never used it: MX Linux is the distro people recommend when someone wants something more configurable than Linux Mint but doesn't want the rolling-release maintenance of Arch. This guide covers what actually changed in 25.3, what editions exist, real system requirements, and an honest look at where it falls short.

What Is MX Linux?

MX Linux is a Debian-based Linux distribution designed for everyday desktop use, combining Debian's package stability with its own set of configuration tools (MX Tools) and a choice of lightweight desktop environments. It's developed jointly by the antiX community and former members of the MEPIS project, and it has ranked among the most-visited distributions on DistroWatch for years.

Unlike Ubuntu-based distros such as Linux Mint or Zorin OS, MX Linux tracks Debian Stable directly, no Ubuntu layer in between. That means slower package churn but a smaller, more predictable base.

MX Linux 25.3 "Infinity": What Actually Changed

MX-25.3 is a point release, not a new major version. It rolls in every Debian 13.7 update plus MX's own repositories. Some coverage reports Qt6 tooling or Wayland-by-default as if they were new in 25.3; they actually landed with the MX 25 base in November 2025. Here's the split:

The one real caveat: on the Raspberry Pi edition, automatic filesystem expansion on first boot has been removed because the previous method became unreliable. You now need to run raspi-config manually after first boot to resize the filesystem.

Editions: Xfce, KDE Plasma, Fluxbox, AHS and Raspberry Pi

If you're not sure which one to pick: Xfce is the one most MX Tools screenshots and guides assume, and it's the lightest of the three mainstream desktops. Go AHS only if your hardware is recent enough that the LTS kernel misses drivers for it.

MX Tools: The Real Reason People Choose MX Linux

Debian Stable alone doesn't explain why MX Linux has its own following. The differentiator is MX Tools, a set of GUI utilities that wrap tasks Debian normally leaves to the terminal:

• MX Snapshot: builds a bootable ISO of your current system, similar in purpose to Timeshift but oriented at cloning your whole setup, not just restoring a system state.
• MX Package Installer: curated app installer on top of apt, split into stable/test/backports sources without you having to edit sources.list by hand.
• MX-Updater: replaces the old apt-notifier, with an optional Nala backend for clearer update output.
• Verify-iso-sig (new in 25.3): checks digital signatures not just for MX ISOs but for images from several other distro families, useful if you download installers from mirrors you don't fully trust.
• MX-Theme-Colors (new in 25.3): generates custom GTK highlight-color variants from existing MX themes.

None of this is exclusive in concept: Debian users have always been able to script backups or manage repos by hand, but MX Tools packages it into something a non-technical user can operate without touching a terminal.

System Requirements

• RAM: 1 GB minimum, 2 GB recommended for normal desktop use, 4 GB+ if you're doing audio/video editing or remastering the ISO.
• Disk space: 6 GB minimum, 20 GB recommended.
• CPU: any x86_64 processor from the last decade; the Xfce AHS edition needs newer GPU drivers, so check your hardware against the Liquorix kernel's supported list if you're picking that edition.

These figures match Debian Stable's own baseline and haven't shifted meaningfully between MX-23 and MX-25: MX Linux doesn't bloat its requirements release over release, which is part of why it still runs comfortably on 2015-era laptops.

MX Linux vs Linux Mint vs Debian: Which One Do You Actually Want?

If your priority is "just works with the least thinking," Mint's Cinnamon polish still wins. If you want a Debian base with real configuration tools and don't mind a plainer default look, MX Linux is the more controllable option. If you don't want anything on top of Debian at all, skip both and install Debian directly.

Real-World Performance and Known Issues

Reviewer testing on the MX-25 Infinity Xfce base (same desktop and theme carried into 25.3) found a mixed picture worth knowing before you install:

• Boot time: around 17 seconds to a usable Xfce session, described as mediocre rather than fast.
• Install time: roughly 7 minutes, up from about 4 minutes on MX-23.
• Battery life: 4 to 5.5 hours on the same hardware that got 6 to 6.5 hours on MX-21, a real regression worth factoring in if you're running MX Linux on a laptop.
• UI scaling: HiDPI scaling was reported as inconsistent, with system tray icons not scaling uniformly.
• Day-to-day stability: no crashes or unexplained bugs during normal use, and package management stayed reliable throughout, even if the interface for it is plain.

None of this is disqualifying, but if battery life on a laptop is your main concern, weigh it against the alternatives in the comparison table above before committing.

How to Download and Install MX Linux 25.3

1. Pick your edition using the table above (Xfce for most people, AHS if your hardware is recent, Fluxbox for very old machines).
2. Download the ISO from the official MX Linux download page or the SourceForge mirror.
3. Verify the signature with the new Verify-iso-sig tool, or manually with sha256sum against the published checksum, before writing it to USB.
4. Create a bootable USB with a tool like Etcher, Ventoy, or dd on Linux.
5. Boot from USB and try the live session first. MX Linux runs fully live, so you can test hardware compatibility (Wi-Fi, graphics, audio) before touching your disk.
6. Launch the installer from the live desktop once you're satisfied, and follow the guided partitioning steps. If you're keeping another OS, this is the same point where dual-boot setups branch off, back up first.
7. Reboot into your new install and run MX-Updater to pull anything published since the ISO was built.

Is MX Linux Good in 2026?

Yes, with a specific caveat. MX Linux remains one of the most consistent options for users who want a Debian base with real day-to-day usability, and MX Tools is still the standout feature that no Ubuntu-based distro replicates exactly. The trade-offs are a plainer default look than Mint or Zorin OS, and measurable battery-life regressions on the current Xfce base compared to older MX releases. If neither of those is a dealbreaker for your hardware, MX-25.3 is a safe, current pick.

Troubleshooting Common Questions

What is MX Linux based on?

MX Linux is based directly on Debian Stable, currently Debian 13.7 "Trixie." It doesn't go through Ubuntu the way Linux Mint or Zorin OS do.

Is MX Linux good for beginners?

It's usable for beginners thanks to MX Tools, but it assumes slightly more comfort with configuration than Linux Mint does. If you want the absolute least friction coming from Windows, Mint is still the safer first choice.

Is MX Linux stable?

Yes. It inherits Debian Stable's package base, and reviewer testing on the current release found no crashes or unexplained bugs during normal use.

Which MX Linux edition should I install?

Xfce is the default and the one most documentation assumes. Pick KDE Plasma if you want a more modern, customizable desktop, Fluxbox for very old hardware, or Xfce AHS if your laptop or GPU is recent enough that the LTS kernel might miss drivers for it.

Is MX Linux free?

Yes, MX Linux is free and open source, distributed at no cost like the Debian base it builds on.

Does MX Linux support dual boot with Windows?

Yes, the installer supports dual-boot partitioning alongside Windows the same way most Debian-based installers do. Back up your data first regardless of which distro you're installing.

Further Reading

• How to Install Linux Mint 22.3 (Zena): Complete Beginner Guide
• Linux Mint Debian Edition (LMDE 7 Gigi): Complete Guide
• Zorin OS: Complete Guide, Editions and Requirements (2026)
• Best Linux Laptops and Computers with Linux Pre-Installed (2026)