Mage-OS vs Magento Open Source in 2026: which should you run?

Mage-OS is a community-run distribution of Magento Open Source that tracks Adobe's code but ships extra features and turns Adobe's isolated security patches into normal Composer releases. In October 2026 the current line, Mage-OS 3.x, is built on Magento Open Source 2.4.9, and the latest release, 3.5.0, is an emergency security update. If you already run Magento Open Source and value a simpler patching routine and community governance, Mage-OS is a credible choice. If you need Adobe's support or plan to move to Adobe Commerce, stay with Magento Open Source.

What Mage-OS is, and who runs it

Mage-OS is maintained by the Mage-OS Association, a community organisation with no shareholders or investors. Development is community-led with public roadmaps, and paying members through Open Collective get voting rights. The distribution is a fork in the packaging sense: it pulls in upstream Magento changes, renames the Composer packages to mage-os/* and adds its own modules and fixes on top.

Magento Open Source remains Adobe's free edition, published under the Open Software License 3.0 on GitHub. Both are free; the differences are in release process, extras and who answers when something breaks.

Side-by-side comparison

The biggest practical difference: patching

Since July 2026 Adobe ships security fixes as monthly isolated patch files that are not published as a Magento git tag or Composer package. Magento Open Source stores must download each file, apply it in order with patch, and verify it. Adobe's September 2026 notes also say Open Source merchants can only download isolated patches for 2.4.7 and later.

Mage-OS maps each Adobe patch onto its source tree and releases it as a normal version. The 2026 record shows how quickly that has happened:

On Mage-OS, staying patched is an ordinary Composer update:

composer require mage-os/product-community-edition 3.5.0 --no-update
composer update
bin/magento setup:upgrade

A Composer release is not a complete incident response, though. The 3.5.0 notes stress that stores were exploitable before a fix existed, and point to compromise checks and credential rotation as part of remediation.

What Mage-OS 3.x adds

• Interactive installer. bin/magento install gives a guided setup with service auto-detection and resume-on-failure. The classic setup:install still works.
• Returns (RMA). Built-in return merchandise authorisation through mage-os/module-rma, enabled in configuration.
• Admin Activity Log. An audit trail of Admin actions through mage-os/module-admin-activity-log.
• Minimal Distribution. mage-os/product-minimal-edition installs about 98 core packages for leaner projects.

Mage-OS 3.0 also removed some modules: Adobe's analytics modules, Magento_Backup (so setup:backup is gone) and the hard requirement for ext-ftp. Check that nothing in your deployment relies on them.

Work in progress in the Mage-OS Lab

Beyond the shipped modules, the Mage-OS site lists Lab projects that are still experimental: PCI DSS 4.0 compliance work, AI-powered translation, performance optimisation, faster patch cycles and a new Admin theme called M137. Treat these as a roadmap, not features to plan a project around. The ecosystem is already reusing Mage-OS work, though: Hyvä says its Admin Theme was built on the Mage-OS theme.

What it costs to run each one

Neither distribution has a licence fee, so the real costs are people and hosting, and they are almost identical. Both need the same stack: PHP, MySQL or MariaDB, OpenSearch, a cache such as Valkey, and usually Varnish. Both need a developer who understands Magento modules, Composer and deployments.

The difference shows up in routine maintenance. On Magento Open Source in 2026, each monthly security bulletin means downloading patch files, applying them in sequence, committing them so new servers get them too, and checking the result. On Mage-OS, the same work is a version bump that your existing Composer workflow and CI already handle. For a small team running a few stores, that saved hour or two a month adds up, and fewer manual steps means fewer missed patches.

Requirements and a fresh install

The Mage-OS quick-start page lists PHP 8.3 to 8.5, Composer 2.10.2 or later, MySQL 8.4 or MariaDB 12.3, OpenSearch 3 and Apache 2.4 or nginx 1.28. A new project starts with:

composer create-project --repository-url=https://repo.mage-os.org/ mage-os/project-community-edition .
bin/magento install

Migrating an existing Magento Open Source store

Mage-OS publishes a migration script that adds its repository and swaps the product packages. Its requirements are strict: Magento 2.4.8 or later, Composer 2.10.2 or later, developer mode, at least twice the installation's disk space, and staging or local only. The guide says plainly: do not run it on production.

cd /path/to/your/magento
bash <(curl -s https://raw.githubusercontent.com/mage-os-lab/migrate-m2-to-mageos/refs/heads/main/migrate-to-mage-os.sh)
bin/magento setup:upgrade
bin/magento setup:di:compile
bin/magento setup:static-content:deploy -f
bin/magento indexer:reindex
bin/magento cache:flush
bin/magento --version

Read any script before piping it into bash. Once staging works, commit the resulting composer.json and composer.lock and deploy them through your normal pipeline instead of rerunning the script on production.

The guide also documents the way back, which is worth testing before you commit:

composer config repositories.0 composer https://repo.magento.com/
composer require magento/product-community-edition --no-update
composer remove mage-os/product-community-edition --no-update
composer update --no-plugins --with-all-dependencies
bin/magento setup:upgrade

Which should you choose?

Choose Mage-OS if

• You run Magento Open Source and want security fixes as Composer releases rather than hand-applied patch files.
• You want returns or an Admin audit log without buying extensions.
• You prefer a community-governed project and are willing to contribute to it.

Stay on Magento Open Source if

• You may upgrade to Adobe Commerce, or you need answers backed by Adobe's lifecycle policy.
• An extension vendor supports only Magento package names or tests only against Adobe releases.
• Your hosting provider or agency has tooling built around repo.magento.com.

Gotchas

• Version numbers differ. Mage-OS 3.5.0 is not Magento 3.5. Read each release's "Upstream" line to know which Magento version you are on.
• Two Mage-OS lines. The 2.x line followed Magento 2.4.8 security releases (2.3.0 in May 2026 carried the 2.4.8-p5 changes). New projects should start on 3.x.
• Extensions that check package names. Most extensions depend on magento/framework, which Mage-OS supplies, but test the ones that require magento/product-community-edition directly.
• Removed modules. Scripts that call setup:backup will fail on 3.x.

What to do next

1. List your extensions and confirm each vendor's position on Mage-OS.
2. Upgrade staging to Magento Open Source 2.4.8 or 2.4.9 first, then run the migration script there.
3. Test checkout, payments and indexing, then rehearse the rollback.
4. Subscribe to Mage-OS releases on GitHub so security releases reach you on the day they ship.