When you look at Linux distributions, you will notice that some have version numbers — Ubuntu 24.04, Debian 12, Fedora 40 — while others do not. Arch Linux, for example, is just “Arch.” This distinction points to two different philosophies for how a Linux distribution should evolve over time.

What is a release model?

A release model describes how a Linux distribution delivers software updates and new versions to users. The two main models are:

• LTS (Long Term Support): software is released at a point in time, tested extensively, and then maintained with security patches for years without major version changes
• Rolling release: software is continuously updated to the latest upstream versions, with no discrete release points

Understanding these models helps you match the right distribution to your use case.

LTS: stability over currency

How it works

An LTS distribution takes a snapshot of software versions, tests them together for compatibility, and releases them as a stable distribution. From that point, the packages are frozen: you get security patches and critical bug fixes, but not new feature versions.

Ubuntu 24.04 LTS was released in April 2024. It shipped with specific versions of the kernel, Python, PostgreSQL, nginx, and every other package. As of 2026, those versions are still the ones you get when you install Ubuntu 24.04 — updated continuously for security issues, but not upgraded to new major versions.

# Check which Ubuntu version you are on
lsb_release -a
# LSB Version: :core-4.1-amd64:...
# Release: 24.04
# Codename: noble

# See the current kernel version
uname -r
# 6.8.0-45-generic  (the version shipped with 24.04, with patches)

# apt will show you the version in the repos
apt-cache policy nginx
# Installed: 1.24.0-2ubuntu7
# Candidate: 1.24.0-2ubuntu7
# This version will not change to nginx 1.28 on Ubuntu 24.04

# Check how long this release is supported
ubuntu-security-status

LTS support windows by distribution

Distribution	Support window	Release frequency
Ubuntu LTS	5 years (10 with Pro)	Every 2 years
Debian Stable	~3-5 years	Every ~2 years
RHEL / AlmaLinux / Rocky	10 years	Every ~3 years
Linux Mint	5 years (follows Ubuntu LTS)	Every 2 years
SUSE Linux Enterprise	10 years	Every 3-4 years

When LTS makes sense

Servers: a web server or database running in production needs predictability. You want nginx 1.24 to stay nginx 1.24 until you choose to upgrade, not upgrade automatically to nginx 1.26 and potentially break something. LTS gives you that guarantee.

Workstations in organisations: IT departments want every machine on the same known-good configuration. LTS releases support this model; rolling releases do not.

Users who do not want to think about updates: an LTS user can install the system, enable unattended-upgrades, and not think about the distribution for three years. A rolling release user needs to run updates regularly and occasionally troubleshoot something that changed.

Mission-critical applications: if your application has been tested against a specific version of Python 3.12 and a specific database driver, you do not want those versions changing under you.

The LTS trade-off

The packages are old by design. Ubuntu 24.04 shipped in April 2024 — by 2026, some of its packages are 2+ years behind the latest upstream versions. This is fine for most software, but creates friction for:

• Developers who need current language runtimes (Python 3.13, Node 22)
• Users who want the latest desktop features
• Anyone who needs software that depends on a newer version of a system library

For development work specifically, the solution is often to install current language versions through version managers (pyenv for Python, nvm for Node) rather than system packages, leaving the base system on LTS.

# Install pyenv on Ubuntu LTS to manage Python versions separately
curl https://pyenv.run | bash

# Install the current Python without touching the system Python
pyenv install 3.13.0
pyenv global 3.13.0
python --version
# Python 3.13.0

Rolling release: always current

How it works

Rolling release distributions have no version numbers and no release dates. Every package is updated to the latest upstream version as soon as the distribution packaging team processes it. Running the update command pulls in whatever is newest.

# Arch Linux: update everything to latest versions
sudo pacman -Syu
# :: Synchronizing package databases...
# :: Starting full system upgrade...
# resolving dependencies...
# Packages (47): linux 6.12.4-1  systemd 256.9-1  firefox 133.0-1  ...
# Do you want to proceed? [Y/n] y

# openSUSE Tumbleweed: rolling with automated snapshot testing
sudo zypper refresh && sudo zypper up

# Void Linux: update with xbps
sudo xbps-install -Su

You never perform a major upgrade because there is nothing to upgrade to. The system is always at the latest stable upstream versions.

Rolling distributions

Distribution	Notes
Arch Linux	Most popular rolling release; manual everything; AUR
openSUSE Tumbleweed	Automated testing before snapshots ship; more conservative than Arch
Void Linux	Independent (not based on Arch/Debian); runit init system
Gentoo	Source-based; compile everything; extremely flexible
NixOS	Declarative configuration; has both rolling and stable channels
EndeavourOS / Manjaro	Arch-based; rolling with more user-friendly defaults

When rolling release makes sense

Developer workstations: current kernel, current compilers, current runtimes. If you want to use features from GCC 14, the latest Rust toolchain, or a kernel eBPF feature that landed 3 months ago, rolling release is the natural choice.

Desktop enthusiasts: new GNOME or KDE features, new Wayland protocols, new GPU driver improvements all arrive faster on rolling distributions.

Single-user machines: if you break something with an update, you fix it yourself. There is no IT department to blame and no users affected. The risk profile is acceptable.

Learning Linux internals: on a rolling distribution you see the Linux ecosystem move in real time. New kernel versions, new systemd features, evolving audio and graphics stacks — all visible in your update history.

The rolling release trade-off

Updates sometimes break things. The risk is low but not zero. Common breakage scenarios:

• A kernel update and a driver update land on different days; you update and your Nvidia GPU falls back to the framebuffer
• A Python or Perl upgrade causes a package that depends on a specific version to fail
• A major library update (glibc, libstdc++) requires a simultaneous rebuild of many packages; if the rebuild is not complete when you update, something may be broken for hours to days

# On Arch, check the news before major updates
# https://archlinux.org/news/
# Or use informant to see news in the terminal
sudo pacman -S informant

# Use timeshift or snapper to take a snapshot before updating
# (Arch with btrfs makes rollback easy)
sudo btrfs subvolume snapshot / /.snapshots/before-update

# Then update
sudo pacman -Syu

# If something breaks, roll back
# sudo btrfs subvolume set-default [snapshot-id] /

The middle ground: fixed release with shorter cycles

Some distributions fall between LTS and rolling:

Fedora: releases every 6 months, supported for 13 months. Packages are current (newer than Ubuntu LTS) but frozen per release. Not rolling, but not multi-year LTS either. You upgrade to the next Fedora version to get new packages.

Ubuntu interim releases (e.g., 24.10): released every 6 months, supported for 9 months. More current packages than the LTS, shorter support window.

Debian Testing: not officially released; always in preparation for the next Stable. More current than Stable, less current than rolling distributions, less guaranteed to be working at any moment.

Which model should you use?

Use LTS if:

• You run servers or infrastructure
• You want a set-and-forget desktop that will work reliably for years
• You are in an organisation with standardised configurations
• You value stability over having the latest software

Use rolling release if:

• You want the newest kernel, desktop, and software versions
• You are comfortable troubleshooting when updates go wrong
• You are a developer who needs current toolchain versions
• You update your system regularly (a very stale rolling system is harder to update than one kept current)

Use the middle ground (Fedora) if:

• You want reasonably current packages without the risk of daily rolling updates
• You are a developer who wants new tools but not a bleeding-edge system
• You are comfortable with twice-yearly distribution upgrades

Frequently Asked Questions

What does LTS mean in Linux?

LTS stands for Long Term Support. An LTS release is a version of a Linux distribution that receives security updates and bug fixes for an extended period — typically 3 to 5 years, sometimes longer. The packages in an LTS release are frozen at or near release time; they do not receive new features, only maintenance updates. Ubuntu LTS releases (e.g., 24.04) are supported for 5 years and come out every two years. Debian Stable follows a similar model without the LTS name. The goal of an LTS release is predictability: the software you install today will still be there, working the same way, three years from now.

What is rolling release?

A rolling release distribution does not have numbered versions or release dates. Instead, packages are continuously updated to the latest upstream versions. When you run the update command (pacman -Syu on Arch, zypper up on openSUSE Tumbleweed), every installed package is upgraded to its current version. You never perform a major distribution upgrade because there is no major version to upgrade to — the system is always current. Rolling distributions include Arch Linux, openSUSE Tumbleweed, Void Linux, and Gentoo. The advantage is always having the latest software; the disadvantage is that updates occasionally break things, particularly on the day a major change ships.

Which is more stable: LTS or rolling release?

LTS distributions are more stable in the sense that they change less — once installed, the system behaves predictably for years. Rolling distributions are more stable in the sense that they are always on the latest versions, which have the latest bug fixes applied. The instability risk in rolling release is specifically around update days: when a major package like glibc, the kernel, or systemd gets a significant version bump, there is a window where dependent packages may not have caught up. On Arch, checking the Arch Linux news page before running pacman -Syu and waiting a day after major announcements is the main mitigation. On openSUSE Tumbleweed, automated testing runs before snapshots ship, reducing this risk.

Should I use LTS or rolling release on a server?

Use LTS on servers, almost without exception. Servers need predictability: you want to know what version of nginx, PHP, or PostgreSQL is installed and have it stay at that version until you choose to upgrade. LTS distributions are also better supported by software vendors for long-running deployments. Rolling release on a server means your dependencies change constantly, which can break running applications unexpectedly. The only exception is if you specifically need a very recent kernel feature or software version for a technical reason — in that case, you might use Debian Testing or a very recent Ubuntu interim release, but not a true rolling release like Arch.

What distributions use LTS and which are rolling release?

LTS-style distributions include Ubuntu LTS (5-year support, released every 2 years), Debian Stable (3-5 year support, released every ~2 years), Red Hat Enterprise Linux / AlmaLinux / Rocky Linux (10-year support), and Linux Mint (built on Ubuntu LTS). Rolling release distributions include Arch Linux, openSUSE Tumbleweed, Void Linux, Gentoo, and NixOS (which is technically rolling but has a stable channel). Some distributions occupy a middle ground: Fedora releases every 6 months with 13-month support (newer packages than LTS but not truly rolling), and openSUSE Leap is a traditional versioned release while Tumbleweed is rolling.

Can you switch from rolling to LTS or vice versa?

Switching from rolling to LTS (or vice versa) is not typically done by updating in-place — it usually means reinstalling the operating system. The package databases, package formats, and system configurations between distributions are different enough that in-place migration is error-prone. A partial exception is openSUSE, where you can switch between Leap (versioned) and Tumbleweed (rolling) on the same base. Arch Linux also has unofficial tools for converting to Artix (init-system variant of Arch), but these are edge cases. The practical approach is: choose the right model for your use case upfront, and if you change your mind, back up your data and reinstall.